/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 23:50:27,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 23:50:27,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 23:50:27,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 23:50:27,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 23:50:27,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 23:50:27,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 23:50:27,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 23:50:27,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 23:50:27,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 23:50:27,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 23:50:27,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 23:50:27,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 23:50:27,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 23:50:27,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 23:50:27,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 23:50:27,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 23:50:27,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 23:50:27,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 23:50:27,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 23:50:27,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 23:50:27,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 23:50:27,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 23:50:27,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 23:50:27,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-13 23:50:27,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 23:50:27,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 23:50:27,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 23:50:27,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-13 23:50:27,305 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 23:50:27,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 23:50:27,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 23:50:27,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 23:50:27,309 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 23:50:27,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 23:50:27,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 23:50:27,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 23:50:27,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 23:50:27,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 23:50:27,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 23:50:27,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 23:50:27,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 23:50:27,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 23:50:27,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 23:50:27,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 23:50:27,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 23:50:27,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 23:50:27,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 23:50:27,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 23:50:27,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 23:50:27,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 23:50:27,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 23:50:27,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 23:50:27,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 23:50:27,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 23:50:27,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 23:50:27,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 23:50:27,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 23:50:27,313 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-13 23:50:27,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 23:50:27,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 23:50:27,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 23:50:27,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 23:50:27,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 23:50:27,683 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 23:50:27,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-07-13 23:50:27,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8321f17a9/d4ed896f6beb4bce998fece902953976/FLAGef9b57b1a [2021-07-13 23:50:28,305 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 23:50:28,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-07-13 23:50:28,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8321f17a9/d4ed896f6beb4bce998fece902953976/FLAGef9b57b1a [2021-07-13 23:50:28,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8321f17a9/d4ed896f6beb4bce998fece902953976 [2021-07-13 23:50:28,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 23:50:28,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 23:50:28,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 23:50:28,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 23:50:28,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 23:50:28,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:50:28" (1/1) ... [2021-07-13 23:50:28,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e69d772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:28, skipping insertion in model container [2021-07-13 23:50:28,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:50:28" (1/1) ... [2021-07-13 23:50:28,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 23:50:28,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 23:50:28,872 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 23:50:29,089 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] [2021-07-13 23:50:29,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 23:50:29,160 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 23:50:29,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 23:50:29,202 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] [2021-07-13 23:50:29,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 23:50:29,273 INFO L208 MainTranslator]: Completed translation [2021-07-13 23:50:29,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29 WrapperNode [2021-07-13 23:50:29,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 23:50:29,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 23:50:29,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 23:50:29,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 23:50:29,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 23:50:29,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 23:50:29,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 23:50:29,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 23:50:29,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (1/1) ... [2021-07-13 23:50:29,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 23:50:29,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 23:50:29,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 23:50:29,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 23:50:29,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (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 [2021-07-13 23:50:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 23:50:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 23:50:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 23:50:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 23:50:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 23:50:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-07-13 23:50:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-07-13 23:50:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 23:50:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 23:50:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 23:50:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 23:50:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-13 23:50:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-13 23:50:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 23:50:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-13 23:50:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 23:50:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 23:50:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 23:50:29,437 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 23:50:29,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 23:50:29,845 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-13 23:50:29,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:50:29 BoogieIcfgContainer [2021-07-13 23:50:29,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 23:50:29,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 23:50:29,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 23:50:29,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 23:50:29,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:50:28" (1/3) ... [2021-07-13 23:50:29,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd93806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:50:29, skipping insertion in model container [2021-07-13 23:50:29,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:50:29" (2/3) ... [2021-07-13 23:50:29,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd93806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:50:29, skipping insertion in model container [2021-07-13 23:50:29,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:50:29" (3/3) ... [2021-07-13 23:50:29,860 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2021-07-13 23:50:29,864 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 23:50:29,864 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 23:50:29,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 23:50:29,864 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 23:50:29,900 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,900 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,901 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,901 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,901 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,901 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,901 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,901 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,902 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,902 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,902 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,902 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,902 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,902 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,903 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,903 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,903 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,903 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,903 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,904 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,904 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,904 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,904 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,904 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,904 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,905 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,905 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,905 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,905 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,905 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,906 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,906 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,906 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,906 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,906 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,906 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,907 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,908 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,908 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,908 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,908 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,909 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,909 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,909 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,909 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,909 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,909 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,910 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,918 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,920 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,920 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,921 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,929 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,930 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,931 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,932 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,940 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,943 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,943 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,943 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,943 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,949 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,949 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,949 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,959 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,960 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,960 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,960 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,962 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,962 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,962 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,962 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,962 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,962 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,964 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,964 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,964 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,964 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,964 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,964 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,965 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,966 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,967 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,967 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,967 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,967 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,967 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,967 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,974 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,974 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,975 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,975 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,982 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,982 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,985 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,985 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,986 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,986 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,987 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,987 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:29,987 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:50:30,119 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-07-13 23:50:30,140 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-13 23:50:30,156 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 23:50:30,156 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 23:50:30,157 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 23:50:30,157 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 23:50:30,157 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 23:50:30,157 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 23:50:30,157 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 23:50:30,157 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 23:50:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 88722 states, 87715 states have (on average 2.7619563358604573) internal successors, (242265), 88721 states have internal predecessors, (242265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:50:42,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-07-13 23:50:42,054 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:50:42,055 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:50:42,055 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:50:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:50:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1309968491, now seen corresponding path program 1 times [2021-07-13 23:50:42,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:50:42,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874398357] [2021-07-13 23:50:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:50:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:50:42,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:42,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:42,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:42,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:42,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:42,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:42,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:42,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:50:42,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:42,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:50:42,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:42,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:42,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:50:42,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:50:42,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874398357] [2021-07-13 23:50:42,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874398357] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:50:42,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:50:42,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 23:50:42,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472499915] [2021-07-13 23:50:42,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 23:50:42,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:50:42,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 23:50:42,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 23:50:42,560 INFO L87 Difference]: Start difference. First operand has 88722 states, 87715 states have (on average 2.7619563358604573) internal successors, (242265), 88721 states have internal predecessors, (242265), 0 states have call successors, (0), 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) [2021-07-13 23:50:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:50:44,506 INFO L93 Difference]: Finished difference Result 125121 states and 346469 transitions. [2021-07-13 23:50:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:50:44,508 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 [2021-07-13 23:50:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:50:44,850 INFO L225 Difference]: With dead ends: 125121 [2021-07-13 23:50:44,851 INFO L226 Difference]: Without dead ends: 46078 [2021-07-13 23:50:44,852 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 23:50:45,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46078 states. [2021-07-13 23:50:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46078 to 46078. [2021-07-13 23:50:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46078 states, 45954 states have (on average 2.6630108369238803) internal successors, (122376), 46077 states have internal predecessors, (122376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:50:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46078 states to 46078 states and 122376 transitions. [2021-07-13 23:50:46,875 INFO L78 Accepts]: Start accepts. Automaton has 46078 states and 122376 transitions. Word has length 43 [2021-07-13 23:50:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:50:46,875 INFO L482 AbstractCegarLoop]: Abstraction has 46078 states and 122376 transitions. [2021-07-13 23:50:46,875 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) [2021-07-13 23:50:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 46078 states and 122376 transitions. [2021-07-13 23:50:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 23:50:46,877 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:50:46,877 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:50:46,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 23:50:46,878 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:50:46,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:50:46,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1933246130, now seen corresponding path program 1 times [2021-07-13 23:50:46,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:50:46,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509551362] [2021-07-13 23:50:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:50:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:50:47,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:47,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:50:47,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:50:47,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:50:47,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:50:47,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:50:47,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:50:47,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:50:47,134 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:50:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:50:47,219 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:50:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:50:47,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:47,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:50:47,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:50:47,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509551362] [2021-07-13 23:50:47,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509551362] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:50:47,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:50:47,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 23:50:47,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331656026] [2021-07-13 23:50:47,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 23:50:47,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:50:47,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 23:50:47,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-13 23:50:47,291 INFO L87 Difference]: Start difference. First operand 46078 states and 122376 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) [2021-07-13 23:50:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:50:48,411 INFO L93 Difference]: Finished difference Result 54535 states and 142724 transitions. [2021-07-13 23:50:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:50:48,412 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 [2021-07-13 23:50:48,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:50:48,952 INFO L225 Difference]: With dead ends: 54535 [2021-07-13 23:50:48,953 INFO L226 Difference]: Without dead ends: 54520 [2021-07-13 23:50:48,954 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 321.4ms TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:50:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54520 states. [2021-07-13 23:50:50,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54520 to 46088. [2021-07-13 23:50:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46088 states, 45964 states have (on average 2.6626707858323906) internal successors, (122387), 46087 states have internal predecessors, (122387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:50:50,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46088 states to 46088 states and 122387 transitions. [2021-07-13 23:50:50,832 INFO L78 Accepts]: Start accepts. Automaton has 46088 states and 122387 transitions. Word has length 45 [2021-07-13 23:50:50,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:50:50,833 INFO L482 AbstractCegarLoop]: Abstraction has 46088 states and 122387 transitions. [2021-07-13 23:50:50,833 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) [2021-07-13 23:50:50,833 INFO L276 IsEmpty]: Start isEmpty. Operand 46088 states and 122387 transitions. [2021-07-13 23:50:50,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 23:50:50,834 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:50:50,835 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:50:50,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 23:50:50,835 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:50:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:50:50,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1758144756, now seen corresponding path program 2 times [2021-07-13 23:50:50,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:50:50,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402233244] [2021-07-13 23:50:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:50:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:50:50,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:50,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:50,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:50,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:50:50,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:50,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:50:50,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:50,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:50:50,950 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:50:50,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:50:50,983 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:50:50,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:50:51,052 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:50:51,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:50:51,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:51,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:50:51,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:50:51,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402233244] [2021-07-13 23:50:51,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402233244] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:50:51,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:50:51,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 23:50:51,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946432004] [2021-07-13 23:50:51,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 23:50:51,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:50:51,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 23:50:51,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-13 23:50:51,122 INFO L87 Difference]: Start difference. First operand 46088 states and 122387 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) [2021-07-13 23:50:51,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:50:51,946 INFO L93 Difference]: Finished difference Result 54472 states and 142657 transitions. [2021-07-13 23:50:51,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 23:50:51,946 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 [2021-07-13 23:50:51,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:50:52,154 INFO L225 Difference]: With dead ends: 54472 [2021-07-13 23:50:52,154 INFO L226 Difference]: Without dead ends: 54457 [2021-07-13 23:50:52,155 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 254.9ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-13 23:50:52,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54457 states. [2021-07-13 23:50:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54457 to 46015. [2021-07-13 23:50:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46015 states, 45895 states have (on average 2.6649743980825797) internal successors, (122309), 46014 states have internal predecessors, (122309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:50:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46015 states to 46015 states and 122309 transitions. [2021-07-13 23:50:53,612 INFO L78 Accepts]: Start accepts. Automaton has 46015 states and 122309 transitions. Word has length 45 [2021-07-13 23:50:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:50:53,613 INFO L482 AbstractCegarLoop]: Abstraction has 46015 states and 122309 transitions. [2021-07-13 23:50:53,613 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) [2021-07-13 23:50:53,613 INFO L276 IsEmpty]: Start isEmpty. Operand 46015 states and 122309 transitions. [2021-07-13 23:50:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-13 23:50:53,616 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:50:53,616 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:50:53,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 23:50:53,616 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:50:53,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:50:53,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1783503648, now seen corresponding path program 1 times [2021-07-13 23:50:53,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:50:53,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458204662] [2021-07-13 23:50:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:50:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:50:53,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:53,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:53,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:53,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:50:53,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:53,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:50:53,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:53,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:53,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:50:53,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:50:53,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458204662] [2021-07-13 23:50:53,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458204662] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:50:53,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:50:53,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 23:50:53,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455094570] [2021-07-13 23:50:53,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 23:50:53,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:50:53,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 23:50:53,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 23:50:53,683 INFO L87 Difference]: Start difference. First operand 46015 states and 122309 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) [2021-07-13 23:50:54,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:50:54,489 INFO L93 Difference]: Finished difference Result 84993 states and 226402 transitions. [2021-07-13 23:50:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:50:54,489 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 [2021-07-13 23:50:54,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:50:54,734 INFO L225 Difference]: With dead ends: 84993 [2021-07-13 23:50:54,734 INFO L226 Difference]: Without dead ends: 61193 [2021-07-13 23:50:54,734 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 40.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 23:50:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61193 states. [2021-07-13 23:50:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61193 to 40589. [2021-07-13 23:50:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40589 states, 40494 states have (on average 2.681508371610609) internal successors, (108585), 40588 states have internal predecessors, (108585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:50:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40589 states to 40589 states and 108585 transitions. [2021-07-13 23:50:56,191 INFO L78 Accepts]: Start accepts. Automaton has 40589 states and 108585 transitions. Word has length 58 [2021-07-13 23:50:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:50:56,192 INFO L482 AbstractCegarLoop]: Abstraction has 40589 states and 108585 transitions. [2021-07-13 23:50:56,192 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) [2021-07-13 23:50:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 40589 states and 108585 transitions. [2021-07-13 23:50:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-13 23:50:56,197 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:50:56,197 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:50:56,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 23:50:56,197 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:50:56,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:50:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1598785541, now seen corresponding path program 1 times [2021-07-13 23:50:56,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:50:56,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193001083] [2021-07-13 23:50:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:50:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:50:56,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:56,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:50:56,250 INFO L142 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size [2021-07-13 23:50:56,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:50:56,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:50:56,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-13 23:50:56,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:50:56,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:50:56,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:56,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:56,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:50:56,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:50:56,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193001083] [2021-07-13 23:50:56,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193001083] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:50:56,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:50:56,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 23:50:56,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537206290] [2021-07-13 23:50:56,288 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 23:50:56,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:50:56,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 23:50:56,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-13 23:50:56,289 INFO L87 Difference]: Start difference. First operand 40589 states and 108585 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) [2021-07-13 23:50:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:50:57,236 INFO L93 Difference]: Finished difference Result 64073 states and 176395 transitions. [2021-07-13 23:50:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 23:50:57,236 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 [2021-07-13 23:50:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:50:57,472 INFO L225 Difference]: With dead ends: 64073 [2021-07-13 23:50:57,473 INFO L226 Difference]: Without dead ends: 61009 [2021-07-13 23:50:57,473 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 112.5ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-07-13 23:50:57,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61009 states. [2021-07-13 23:50:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61009 to 40443. [2021-07-13 23:50:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40443 states, 40348 states have (on average 2.6828839099831465) internal successors, (108249), 40442 states have internal predecessors, (108249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:50:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40443 states to 40443 states and 108249 transitions. [2021-07-13 23:50:58,845 INFO L78 Accepts]: Start accepts. Automaton has 40443 states and 108249 transitions. Word has length 63 [2021-07-13 23:50:58,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:50:58,846 INFO L482 AbstractCegarLoop]: Abstraction has 40443 states and 108249 transitions. [2021-07-13 23:50:58,846 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) [2021-07-13 23:50:58,846 INFO L276 IsEmpty]: Start isEmpty. Operand 40443 states and 108249 transitions. [2021-07-13 23:50:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-13 23:50:58,850 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:50:58,850 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:50:58,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 23:50:58,851 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:50:58,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:50:58,851 INFO L82 PathProgramCache]: Analyzing trace with hash 83079118, now seen corresponding path program 1 times [2021-07-13 23:50:58,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:50:58,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108971521] [2021-07-13 23:50:58,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:50:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:50:58,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:58,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:50:58,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:50:58,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:58,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:50:58,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:50:58,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:50:58,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:50:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:50:58,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:50:58,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108971521] [2021-07-13 23:50:58,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108971521] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:50:58,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:50:58,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 23:50:58,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52252118] [2021-07-13 23:50:58,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 23:50:58,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:50:58,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 23:50:58,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 23:50:58,919 INFO L87 Difference]: Start difference. First operand 40443 states and 108249 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) [2021-07-13 23:50:59,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:50:59,741 INFO L93 Difference]: Finished difference Result 77716 states and 214336 transitions. [2021-07-13 23:50:59,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 23:50:59,741 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 [2021-07-13 23:50:59,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:50:59,879 INFO L225 Difference]: With dead ends: 77716 [2021-07-13 23:50:59,880 INFO L226 Difference]: Without dead ends: 46873 [2021-07-13 23:50:59,880 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 75.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-13 23:51:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46873 states. [2021-07-13 23:51:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46873 to 39375. [2021-07-13 23:51:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39375 states, 39295 states have (on average 2.7128642320905967) internal successors, (106602), 39374 states have internal predecessors, (106602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39375 states to 39375 states and 106602 transitions. [2021-07-13 23:51:01,225 INFO L78 Accepts]: Start accepts. Automaton has 39375 states and 106602 transitions. Word has length 64 [2021-07-13 23:51:01,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:01,226 INFO L482 AbstractCegarLoop]: Abstraction has 39375 states and 106602 transitions. [2021-07-13 23:51:01,226 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) [2021-07-13 23:51:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 39375 states and 106602 transitions. [2021-07-13 23:51:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 23:51:01,247 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:01,247 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:01,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 23:51:01,248 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:01,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:01,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1235180173, now seen corresponding path program 1 times [2021-07-13 23:51:01,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:01,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242401313] [2021-07-13 23:51:01,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:01,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:01,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:01,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:01,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:01,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:01,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:01,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:01,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:01,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:01,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:01,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:01,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:01,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:01,473 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:01,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:01,511 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:01,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:01,577 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:01,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:01,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:01,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:01,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:01,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242401313] [2021-07-13 23:51:01,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242401313] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:01,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:01,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 23:51:01,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297586473] [2021-07-13 23:51:01,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 23:51:01,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:01,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 23:51:01,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 23:51:01,649 INFO L87 Difference]: Start difference. First operand 39375 states and 106602 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) [2021-07-13 23:51:02,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:02,744 INFO L93 Difference]: Finished difference Result 44281 states and 116287 transitions. [2021-07-13 23:51:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:51:02,744 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 [2021-07-13 23:51:02,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:02,845 INFO L225 Difference]: With dead ends: 44281 [2021-07-13 23:51:02,845 INFO L226 Difference]: Without dead ends: 43755 [2021-07-13 23:51:02,845 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 481.6ms TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-07-13 23:51:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43755 states. [2021-07-13 23:51:03,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43755 to 41671. [2021-07-13 23:51:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41671 states, 41591 states have (on average 2.706571133177851) internal successors, (112569), 41670 states have internal predecessors, (112569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:03,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41671 states to 41671 states and 112569 transitions. [2021-07-13 23:51:03,735 INFO L78 Accepts]: Start accepts. Automaton has 41671 states and 112569 transitions. Word has length 66 [2021-07-13 23:51:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:03,736 INFO L482 AbstractCegarLoop]: Abstraction has 41671 states and 112569 transitions. [2021-07-13 23:51:03,736 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) [2021-07-13 23:51:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 41671 states and 112569 transitions. [2021-07-13 23:51:03,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 23:51:03,747 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:03,747 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:03,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 23:51:03,748 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:03,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1121751891, now seen corresponding path program 2 times [2021-07-13 23:51:03,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:03,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069400969] [2021-07-13 23:51:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:03,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:03,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:03,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:03,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:03,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:03,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:03,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:51:03,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:03,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:51:03,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:51:03,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:03,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:03,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:04,011 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-07-13 23:51:04,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:04,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:04,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:04,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:04,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:04,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:04,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:04,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:04,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:04,477 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:04,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:04,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:04,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069400969] [2021-07-13 23:51:04,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069400969] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:04,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:04,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 23:51:04,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281487993] [2021-07-13 23:51:04,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 23:51:04,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:04,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 23:51:04,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-13 23:51:04,556 INFO L87 Difference]: Start difference. First operand 41671 states and 112569 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) [2021-07-13 23:51:05,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:05,866 INFO L93 Difference]: Finished difference Result 43227 states and 115504 transitions. [2021-07-13 23:51:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:51:05,867 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 [2021-07-13 23:51:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:06,188 INFO L225 Difference]: With dead ends: 43227 [2021-07-13 23:51:06,188 INFO L226 Difference]: Without dead ends: 42973 [2021-07-13 23:51:06,188 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1084.9ms TimeCoverageRelationStatistics Valid=140, Invalid=916, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 23:51:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42973 states. [2021-07-13 23:51:06,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42973 to 41663. [2021-07-13 23:51:06,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41663 states, 41583 states have (on average 2.7068032609479835) internal successors, (112557), 41662 states have internal predecessors, (112557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41663 states to 41663 states and 112557 transitions. [2021-07-13 23:51:07,093 INFO L78 Accepts]: Start accepts. Automaton has 41663 states and 112557 transitions. Word has length 66 [2021-07-13 23:51:07,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:07,094 INFO L482 AbstractCegarLoop]: Abstraction has 41663 states and 112557 transitions. [2021-07-13 23:51:07,094 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) [2021-07-13 23:51:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 41663 states and 112557 transitions. [2021-07-13 23:51:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 23:51:07,102 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:07,103 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:07,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 23:51:07,103 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:07,103 INFO L82 PathProgramCache]: Analyzing trace with hash -453369167, now seen corresponding path program 3 times [2021-07-13 23:51:07,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:07,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563139812] [2021-07-13 23:51:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:07,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:07,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:07,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:07,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:07,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:07,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:07,213 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-07-13 23:51:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:07,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-13 23:51:07,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:51:07,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:51:07,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-13 23:51:07,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-07-13 23:51:07,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-07-13 23:51:07,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:07,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:07,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:07,449 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:07,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:07,510 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:07,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:07,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:07,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:07,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563139812] [2021-07-13 23:51:07,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563139812] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:07,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:07,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 23:51:07,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75439344] [2021-07-13 23:51:07,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 23:51:07,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:07,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 23:51:07,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 23:51:07,580 INFO L87 Difference]: Start difference. First operand 41663 states and 112557 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) [2021-07-13 23:51:07,973 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-07-13 23:51:08,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:08,752 INFO L93 Difference]: Finished difference Result 46561 states and 122233 transitions. [2021-07-13 23:51:08,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 23:51:08,752 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 [2021-07-13 23:51:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:08,864 INFO L225 Difference]: With dead ends: 46561 [2021-07-13 23:51:08,864 INFO L226 Difference]: Without dead ends: 46035 [2021-07-13 23:51:08,865 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 815.8ms TimeCoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2021-07-13 23:51:09,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46035 states. [2021-07-13 23:51:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46035 to 41663. [2021-07-13 23:51:09,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41663 states, 41583 states have (on average 2.7068032609479835) internal successors, (112557), 41662 states have internal predecessors, (112557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41663 states to 41663 states and 112557 transitions. [2021-07-13 23:51:10,062 INFO L78 Accepts]: Start accepts. Automaton has 41663 states and 112557 transitions. Word has length 66 [2021-07-13 23:51:10,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:10,062 INFO L482 AbstractCegarLoop]: Abstraction has 41663 states and 112557 transitions. [2021-07-13 23:51:10,062 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) [2021-07-13 23:51:10,062 INFO L276 IsEmpty]: Start isEmpty. Operand 41663 states and 112557 transitions. [2021-07-13 23:51:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 23:51:10,069 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:10,070 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:10,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 23:51:10,070 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:10,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1884750627, now seen corresponding path program 4 times [2021-07-13 23:51:10,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:10,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791688082] [2021-07-13 23:51:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:10,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:10,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:10,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:10,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:10,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:10,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:10,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:10,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:10,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:10,196 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:10,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:10,224 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:10,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:10,258 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:10,314 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:10,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:10,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:10,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:10,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:10,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:10,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791688082] [2021-07-13 23:51:10,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791688082] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:10,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:10,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 23:51:10,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557291732] [2021-07-13 23:51:10,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 23:51:10,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:10,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 23:51:10,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-07-13 23:51:10,375 INFO L87 Difference]: Start difference. First operand 41663 states and 112557 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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) [2021-07-13 23:51:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:11,320 INFO L93 Difference]: Finished difference Result 46583 states and 122257 transitions. [2021-07-13 23:51:11,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 23:51:11,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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 [2021-07-13 23:51:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:11,445 INFO L225 Difference]: With dead ends: 46583 [2021-07-13 23:51:11,445 INFO L226 Difference]: Without dead ends: 46057 [2021-07-13 23:51:11,446 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 404.6ms TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-07-13 23:51:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46057 states. [2021-07-13 23:51:12,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46057 to 41677. [2021-07-13 23:51:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41677 states, 41597 states have (on average 2.706252854773181) internal successors, (112572), 41676 states have internal predecessors, (112572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:12,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41677 states to 41677 states and 112572 transitions. [2021-07-13 23:51:12,410 INFO L78 Accepts]: Start accepts. Automaton has 41677 states and 112572 transitions. Word has length 66 [2021-07-13 23:51:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:12,410 INFO L482 AbstractCegarLoop]: Abstraction has 41677 states and 112572 transitions. [2021-07-13 23:51:12,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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) [2021-07-13 23:51:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 41677 states and 112572 transitions. [2021-07-13 23:51:12,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 23:51:12,417 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:12,417 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:12,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 23:51:12,418 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:12,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:12,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1395732443, now seen corresponding path program 5 times [2021-07-13 23:51:12,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:12,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273054544] [2021-07-13 23:51:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:12,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:12,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:12,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:12,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:12,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:12,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:12,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:12,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:12,762 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:12,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:12,806 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:12,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:12,868 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:12,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:12,915 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:51:12,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:51:12,988 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:12,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:51:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:13,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:13,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273054544] [2021-07-13 23:51:13,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273054544] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:13,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:13,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-13 23:51:13,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297047965] [2021-07-13 23:51:13,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 23:51:13,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:13,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 23:51:13,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-13 23:51:13,057 INFO L87 Difference]: Start difference. First operand 41677 states and 112572 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) [2021-07-13 23:51:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:13,719 INFO L93 Difference]: Finished difference Result 46357 states and 121881 transitions. [2021-07-13 23:51:13,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:51:13,720 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 [2021-07-13 23:51:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:13,830 INFO L225 Difference]: With dead ends: 46357 [2021-07-13 23:51:13,830 INFO L226 Difference]: Without dead ends: 45831 [2021-07-13 23:51:13,830 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 633.2ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-07-13 23:51:13,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45831 states. [2021-07-13 23:51:14,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45831 to 41437. [2021-07-13 23:51:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41437 states, 41361 states have (on average 2.7122409999758226) internal successors, (112181), 41436 states have internal predecessors, (112181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:14,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41437 states to 41437 states and 112181 transitions. [2021-07-13 23:51:14,985 INFO L78 Accepts]: Start accepts. Automaton has 41437 states and 112181 transitions. Word has length 66 [2021-07-13 23:51:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:14,986 INFO L482 AbstractCegarLoop]: Abstraction has 41437 states and 112181 transitions. [2021-07-13 23:51:14,986 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) [2021-07-13 23:51:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand 41437 states and 112181 transitions. [2021-07-13 23:51:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 23:51:14,997 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:14,997 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:14,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 23:51:14,997 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:14,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:14,997 INFO L82 PathProgramCache]: Analyzing trace with hash 404245851, now seen corresponding path program 1 times [2021-07-13 23:51:14,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:14,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081576749] [2021-07-13 23:51:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:15,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:15,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:15,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:15,042 INFO L142 QuantifierPusher]: treesize reduction 35, result has 20.5 percent of original size [2021-07-13 23:51:15,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:15,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:15,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-13 23:51:15,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-13 23:51:15,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:51:15,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:15,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:15,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:15,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:15,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:15,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081576749] [2021-07-13 23:51:15,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081576749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:15,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:15,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 23:51:15,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744059797] [2021-07-13 23:51:15,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 23:51:15,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:15,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 23:51:15,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-07-13 23:51:15,103 INFO L87 Difference]: Start difference. First operand 41437 states and 112181 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) [2021-07-13 23:51:15,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:15,879 INFO L93 Difference]: Finished difference Result 55584 states and 153123 transitions. [2021-07-13 23:51:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 23:51:15,880 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 [2021-07-13 23:51:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:16,077 INFO L225 Difference]: With dead ends: 55584 [2021-07-13 23:51:16,078 INFO L226 Difference]: Without dead ends: 51432 [2021-07-13 23:51:16,078 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:51:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51432 states. [2021-07-13 23:51:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51432 to 40836. [2021-07-13 23:51:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40836 states, 40764 states have (on average 2.7161465999411245) internal successors, (110721), 40835 states have internal predecessors, (110721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40836 states to 40836 states and 110721 transitions. [2021-07-13 23:51:17,112 INFO L78 Accepts]: Start accepts. Automaton has 40836 states and 110721 transitions. Word has length 69 [2021-07-13 23:51:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:17,112 INFO L482 AbstractCegarLoop]: Abstraction has 40836 states and 110721 transitions. [2021-07-13 23:51:17,112 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) [2021-07-13 23:51:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 40836 states and 110721 transitions. [2021-07-13 23:51:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 23:51:17,125 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:17,125 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:17,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 23:51:17,125 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:17,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:17,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1618397781, now seen corresponding path program 1 times [2021-07-13 23:51:17,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:17,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591252672] [2021-07-13 23:51:17,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:17,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:17,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:17,162 INFO L142 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size [2021-07-13 23:51:17,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:17,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:17,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-13 23:51:17,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:51:17,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:17,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:17,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:17,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:17,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:17,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:17,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:17,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591252672] [2021-07-13 23:51:17,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591252672] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:17,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:17,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 23:51:17,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342363508] [2021-07-13 23:51:17,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 23:51:17,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:17,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 23:51:17,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-13 23:51:17,215 INFO L87 Difference]: Start difference. First operand 40836 states and 110721 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) [2021-07-13 23:51:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:18,036 INFO L93 Difference]: Finished difference Result 54743 states and 149783 transitions. [2021-07-13 23:51:18,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 23:51:18,036 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 [2021-07-13 23:51:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:18,162 INFO L225 Difference]: With dead ends: 54743 [2021-07-13 23:51:18,162 INFO L226 Difference]: Without dead ends: 47478 [2021-07-13 23:51:18,162 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 176.1ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:51:18,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47478 states. [2021-07-13 23:51:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47478 to 39993. [2021-07-13 23:51:19,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39993 states, 39921 states have (on average 2.717291651010746) internal successors, (108477), 39992 states have internal predecessors, (108477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:19,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39993 states to 39993 states and 108477 transitions. [2021-07-13 23:51:19,187 INFO L78 Accepts]: Start accepts. Automaton has 39993 states and 108477 transitions. Word has length 69 [2021-07-13 23:51:19,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:19,187 INFO L482 AbstractCegarLoop]: Abstraction has 39993 states and 108477 transitions. [2021-07-13 23:51:19,188 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) [2021-07-13 23:51:19,188 INFO L276 IsEmpty]: Start isEmpty. Operand 39993 states and 108477 transitions. [2021-07-13 23:51:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-13 23:51:19,204 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:19,204 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:19,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 23:51:19,204 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:19,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:19,204 INFO L82 PathProgramCache]: Analyzing trace with hash -721655780, now seen corresponding path program 1 times [2021-07-13 23:51:19,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:19,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835914064] [2021-07-13 23:51:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:19,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:19,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:19,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:19,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:19,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:19,555 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-07-13 23:51:19,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:19,570 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-07-13 23:51:19,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:51:19,587 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-07-13 23:51:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:51:19,606 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.1 percent of original size [2021-07-13 23:51:19,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:51:19,627 INFO L142 QuantifierPusher]: treesize reduction 14, result has 80.0 percent of original size [2021-07-13 23:51:19,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:51:19,636 INFO L142 QuantifierPusher]: treesize reduction 14, result has 80.0 percent of original size [2021-07-13 23:51:19,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:51:19,665 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.1 percent of original size [2021-07-13 23:51:19,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:51:19,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:19,693 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-07-13 23:51:19,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:51:19,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:51:19,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:51:19,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:51:19,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:19,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:19,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:19,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:19,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:19,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:19,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:19,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:19,964 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:19,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:20,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:20,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:20,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:20,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835914064] [2021-07-13 23:51:20,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835914064] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:20,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:20,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 23:51:20,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481320889] [2021-07-13 23:51:20,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 23:51:20,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:20,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 23:51:20,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:51:20,036 INFO L87 Difference]: Start difference. First operand 39993 states and 108477 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) [2021-07-13 23:51:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:21,491 INFO L93 Difference]: Finished difference Result 44317 states and 117003 transitions. [2021-07-13 23:51:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:51:21,492 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 [2021-07-13 23:51:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:21,599 INFO L225 Difference]: With dead ends: 44317 [2021-07-13 23:51:21,600 INFO L226 Difference]: Without dead ends: 43831 [2021-07-13 23:51:21,600 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 863.0ms TimeCoverageRelationStatistics Valid=151, Invalid=1109, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 23:51:21,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43831 states. [2021-07-13 23:51:22,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43831 to 38972. [2021-07-13 23:51:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38972 states, 38904 states have (on average 2.7239615463705533) internal successors, (105973), 38971 states have internal predecessors, (105973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38972 states to 38972 states and 105973 transitions. [2021-07-13 23:51:22,452 INFO L78 Accepts]: Start accepts. Automaton has 38972 states and 105973 transitions. Word has length 71 [2021-07-13 23:51:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:22,453 INFO L482 AbstractCegarLoop]: Abstraction has 38972 states and 105973 transitions. [2021-07-13 23:51:22,453 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) [2021-07-13 23:51:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 38972 states and 105973 transitions. [2021-07-13 23:51:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:22,478 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:22,479 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:22,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 23:51:22,479 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:22,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1348000998, now seen corresponding path program 1 times [2021-07-13 23:51:22,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:22,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727165570] [2021-07-13 23:51:22,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:22,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:22,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:22,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:22,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:22,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:22,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:22,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:22,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:22,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:22,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:22,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:22,657 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:22,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:22,717 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:22,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:22,951 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2021-07-13 23:51:22,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:22,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:22,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:22,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727165570] [2021-07-13 23:51:22,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727165570] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:22,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:22,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 23:51:22,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316209074] [2021-07-13 23:51:22,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 23:51:22,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:22,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 23:51:22,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-07-13 23:51:22,955 INFO L87 Difference]: Start difference. First operand 38972 states and 105973 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) [2021-07-13 23:51:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:23,666 INFO L93 Difference]: Finished difference Result 42688 states and 113035 transitions. [2021-07-13 23:51:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 23:51:23,666 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 [2021-07-13 23:51:23,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:23,771 INFO L225 Difference]: With dead ends: 42688 [2021-07-13 23:51:23,771 INFO L226 Difference]: Without dead ends: 42038 [2021-07-13 23:51:23,772 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 566.2ms TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:51:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42038 states. [2021-07-13 23:51:24,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42038 to 40044. [2021-07-13 23:51:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40044 states, 39976 states have (on average 2.714703822293376) internal successors, (108523), 40043 states have internal predecessors, (108523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:24,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40044 states to 40044 states and 108523 transitions. [2021-07-13 23:51:24,909 INFO L78 Accepts]: Start accepts. Automaton has 40044 states and 108523 transitions. Word has length 74 [2021-07-13 23:51:24,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:24,910 INFO L482 AbstractCegarLoop]: Abstraction has 40044 states and 108523 transitions. [2021-07-13 23:51:24,910 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) [2021-07-13 23:51:24,910 INFO L276 IsEmpty]: Start isEmpty. Operand 40044 states and 108523 transitions. [2021-07-13 23:51:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:24,936 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:24,936 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:24,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-13 23:51:24,937 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash -695571825, now seen corresponding path program 1 times [2021-07-13 23:51:24,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:24,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239541667] [2021-07-13 23:51:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:25,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:25,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:25,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-13 23:51:25,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:25,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:25,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-13 23:51:25,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:25,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:51:25,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:51:25,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:25,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:51:25,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:51:25,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:51:25,211 INFO L142 QuantifierPusher]: treesize reduction 29, result has 78.2 percent of original size [2021-07-13 23:51:25,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-07-13 23:51:25,307 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:51:25,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:51:25,371 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:51:25,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:51:25,457 INFO L142 QuantifierPusher]: treesize reduction 32, result has 87.3 percent of original size [2021-07-13 23:51:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-07-13 23:51:25,543 INFO L142 QuantifierPusher]: treesize reduction 13, result has 97.0 percent of original size [2021-07-13 23:51:25,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 415 [2021-07-13 23:51:25,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:25,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:25,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:25,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239541667] [2021-07-13 23:51:25,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239541667] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:25,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:25,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 23:51:25,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004914784] [2021-07-13 23:51:25,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 23:51:25,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:25,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 23:51:25,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:51:25,630 INFO L87 Difference]: Start difference. First operand 40044 states and 108523 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) [2021-07-13 23:51:27,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:27,328 INFO L93 Difference]: Finished difference Result 41468 states and 110356 transitions. [2021-07-13 23:51:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 23:51:27,328 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 [2021-07-13 23:51:27,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:27,429 INFO L225 Difference]: With dead ends: 41468 [2021-07-13 23:51:27,429 INFO L226 Difference]: Without dead ends: 39942 [2021-07-13 23:51:27,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1484.0ms TimeCoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 23:51:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39942 states. [2021-07-13 23:51:28,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39942 to 39432. [2021-07-13 23:51:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39432 states, 39364 states have (on average 2.7182196931206177) internal successors, (107000), 39431 states have internal predecessors, (107000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39432 states to 39432 states and 107000 transitions. [2021-07-13 23:51:28,511 INFO L78 Accepts]: Start accepts. Automaton has 39432 states and 107000 transitions. Word has length 74 [2021-07-13 23:51:28,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:28,511 INFO L482 AbstractCegarLoop]: Abstraction has 39432 states and 107000 transitions. [2021-07-13 23:51:28,511 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) [2021-07-13 23:51:28,511 INFO L276 IsEmpty]: Start isEmpty. Operand 39432 states and 107000 transitions. [2021-07-13 23:51:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:28,537 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:28,537 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:28,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-13 23:51:28,537 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:28,537 INFO L82 PathProgramCache]: Analyzing trace with hash -426037484, now seen corresponding path program 2 times [2021-07-13 23:51:28,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:28,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137138603] [2021-07-13 23:51:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:28,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:28,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:28,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:28,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:28,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:28,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:28,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:28,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:51:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:51:28,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:28,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:28,720 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-07-13 23:51:28,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:28,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:28,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:28,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:28,843 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:28,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:28,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:28,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:28,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:28,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137138603] [2021-07-13 23:51:28,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137138603] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:28,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:28,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 23:51:28,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836880568] [2021-07-13 23:51:28,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 23:51:28,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:28,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 23:51:28,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 23:51:28,912 INFO L87 Difference]: Start difference. First operand 39432 states and 107000 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) [2021-07-13 23:51:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:29,967 INFO L93 Difference]: Finished difference Result 42235 states and 112687 transitions. [2021-07-13 23:51:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:51:29,968 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 [2021-07-13 23:51:29,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:30,117 INFO L225 Difference]: With dead ends: 42235 [2021-07-13 23:51:30,117 INFO L226 Difference]: Without dead ends: 41996 [2021-07-13 23:51:30,118 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 550.2ms TimeCoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2021-07-13 23:51:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41996 states. [2021-07-13 23:51:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41996 to 40735. [2021-07-13 23:51:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40735 states, 40667 states have (on average 2.7184449307792558) internal successors, (110551), 40734 states have internal predecessors, (110551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:31,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40735 states to 40735 states and 110551 transitions. [2021-07-13 23:51:31,190 INFO L78 Accepts]: Start accepts. Automaton has 40735 states and 110551 transitions. Word has length 74 [2021-07-13 23:51:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:31,190 INFO L482 AbstractCegarLoop]: Abstraction has 40735 states and 110551 transitions. [2021-07-13 23:51:31,190 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) [2021-07-13 23:51:31,190 INFO L276 IsEmpty]: Start isEmpty. Operand 40735 states and 110551 transitions. [2021-07-13 23:51:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:31,214 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:31,214 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:31,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-13 23:51:31,214 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:31,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1530223786, now seen corresponding path program 1 times [2021-07-13 23:51:31,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:31,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811365343] [2021-07-13 23:51:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:31,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:31,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:31,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:31,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:31,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:31,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:31,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:31,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:51:31,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:51:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:31,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:31,401 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-07-13 23:51:31,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:31,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:31,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:31,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:31,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:31,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:31,514 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:51:31,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:51:31,565 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:31,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:51:31,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:31,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:31,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:31,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811365343] [2021-07-13 23:51:31,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811365343] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:31,636 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:31,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 23:51:31,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6215813] [2021-07-13 23:51:31,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 23:51:31,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:31,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 23:51:31,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:51:31,637 INFO L87 Difference]: Start difference. First operand 40735 states and 110551 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) [2021-07-13 23:51:31,982 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-07-13 23:51:32,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:32,674 INFO L93 Difference]: Finished difference Result 41579 states and 111073 transitions. [2021-07-13 23:51:32,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 23:51:32,674 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 [2021-07-13 23:51:32,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:32,773 INFO L225 Difference]: With dead ends: 41579 [2021-07-13 23:51:32,773 INFO L226 Difference]: Without dead ends: 41021 [2021-07-13 23:51:32,774 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 778.1ms TimeCoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2021-07-13 23:51:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41021 states. [2021-07-13 23:51:33,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41021 to 40219. [2021-07-13 23:51:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40219 states, 40151 states have (on average 2.7113645986401336) internal successors, (108864), 40218 states have internal predecessors, (108864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:33,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40219 states to 40219 states and 108864 transitions. [2021-07-13 23:51:33,901 INFO L78 Accepts]: Start accepts. Automaton has 40219 states and 108864 transitions. Word has length 74 [2021-07-13 23:51:33,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:33,901 INFO L482 AbstractCegarLoop]: Abstraction has 40219 states and 108864 transitions. [2021-07-13 23:51:33,902 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) [2021-07-13 23:51:33,902 INFO L276 IsEmpty]: Start isEmpty. Operand 40219 states and 108864 transitions. [2021-07-13 23:51:33,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:33,927 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:33,927 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:33,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 23:51:33,928 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:33,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1077205260, now seen corresponding path program 3 times [2021-07-13 23:51:33,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:33,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102346258] [2021-07-13 23:51:33,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:34,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:34,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:34,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:34,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:34,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:34,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:34,059 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-07-13 23:51:34,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:51:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:51:34,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:51:34,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-07-13 23:51:34,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-07-13 23:51:34,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:51:34,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-13 23:51:34,269 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.8 percent of original size [2021-07-13 23:51:34,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-13 23:51:34,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-13 23:51:34,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:51:34,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:34,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:34,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:34,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:34,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:34,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:34,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:34,590 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:34,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:34,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:34,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:34,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:34,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:34,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102346258] [2021-07-13 23:51:34,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102346258] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:34,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:34,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 23:51:34,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160781675] [2021-07-13 23:51:34,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 23:51:34,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:34,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 23:51:34,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-07-13 23:51:34,665 INFO L87 Difference]: Start difference. First operand 40219 states and 108864 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) [2021-07-13 23:51:35,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:35,882 INFO L93 Difference]: Finished difference Result 45757 states and 120319 transitions. [2021-07-13 23:51:35,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:51:35,883 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 [2021-07-13 23:51:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:36,009 INFO L225 Difference]: With dead ends: 45757 [2021-07-13 23:51:36,009 INFO L226 Difference]: Without dead ends: 45107 [2021-07-13 23:51:36,010 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 968.0ms TimeCoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 23:51:36,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45107 states. [2021-07-13 23:51:36,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45107 to 41295. [2021-07-13 23:51:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41295 states, 41227 states have (on average 2.714628762704053) internal successors, (111916), 41294 states have internal predecessors, (111916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41295 states to 41295 states and 111916 transitions. [2021-07-13 23:51:36,943 INFO L78 Accepts]: Start accepts. Automaton has 41295 states and 111916 transitions. Word has length 74 [2021-07-13 23:51:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:36,944 INFO L482 AbstractCegarLoop]: Abstraction has 41295 states and 111916 transitions. [2021-07-13 23:51:36,944 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) [2021-07-13 23:51:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 41295 states and 111916 transitions. [2021-07-13 23:51:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:37,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:37,231 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:37,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 23:51:37,232 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:37,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:37,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1049127646, now seen corresponding path program 2 times [2021-07-13 23:51:37,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:37,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654324137] [2021-07-13 23:51:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:37,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:37,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:37,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:37,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:37,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:37,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:51:37,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:37,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:51:37,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:51:37,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:37,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:51:37,420 INFO L142 QuantifierPusher]: treesize reduction 21, result has 59.6 percent of original size [2021-07-13 23:51:37,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:37,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:37,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:37,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:37,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:37,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:37,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:37,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:37,577 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:37,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:37,635 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:37,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:37,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:37,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:37,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:37,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654324137] [2021-07-13 23:51:37,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654324137] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:37,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:37,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 23:51:37,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099827171] [2021-07-13 23:51:37,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 23:51:37,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:37,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 23:51:37,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-13 23:51:37,704 INFO L87 Difference]: Start difference. First operand 41295 states and 111916 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) [2021-07-13 23:51:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:38,796 INFO L93 Difference]: Finished difference Result 43932 states and 116068 transitions. [2021-07-13 23:51:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 23:51:38,797 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 [2021-07-13 23:51:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:38,898 INFO L225 Difference]: With dead ends: 43932 [2021-07-13 23:51:38,898 INFO L226 Difference]: Without dead ends: 43374 [2021-07-13 23:51:38,898 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 654.2ms TimeCoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2021-07-13 23:51:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43374 states. [2021-07-13 23:51:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43374 to 39471. [2021-07-13 23:51:39,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39471 states, 39407 states have (on average 2.716928464486005) internal successors, (107066), 39470 states have internal predecessors, (107066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39471 states to 39471 states and 107066 transitions. [2021-07-13 23:51:39,746 INFO L78 Accepts]: Start accepts. Automaton has 39471 states and 107066 transitions. Word has length 74 [2021-07-13 23:51:39,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:39,746 INFO L482 AbstractCegarLoop]: Abstraction has 39471 states and 107066 transitions. [2021-07-13 23:51:39,746 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) [2021-07-13 23:51:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 39471 states and 107066 transitions. [2021-07-13 23:51:39,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:39,771 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:39,771 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:39,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 23:51:39,771 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:39,772 INFO L82 PathProgramCache]: Analyzing trace with hash -141682777, now seen corresponding path program 2 times [2021-07-13 23:51:39,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:39,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900776626] [2021-07-13 23:51:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:39,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:39,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:39,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:51:39,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:51:39,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:51:39,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:39,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:51:39,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:51:39,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:51:39,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:51:39,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:51:39,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:51:39,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:39,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:51:39,993 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-07-13 23:51:39,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:51:40,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:51:40,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:51:40,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:51:40,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:40,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:40,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:40,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:40,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:40,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:40,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:40,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:40,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:40,298 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:40,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:40,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:40,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:40,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:40,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900776626] [2021-07-13 23:51:40,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900776626] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:40,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:40,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 23:51:40,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863748005] [2021-07-13 23:51:40,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 23:51:40,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:40,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 23:51:40,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 23:51:40,359 INFO L87 Difference]: Start difference. First operand 39471 states and 107066 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) [2021-07-13 23:51:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:41,781 INFO L93 Difference]: Finished difference Result 41131 states and 109970 transitions. [2021-07-13 23:51:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 23:51:41,782 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 [2021-07-13 23:51:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:42,041 INFO L225 Difference]: With dead ends: 41131 [2021-07-13 23:51:42,041 INFO L226 Difference]: Without dead ends: 39743 [2021-07-13 23:51:42,042 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 919.1ms TimeCoverageRelationStatistics Valid=161, Invalid=1245, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 23:51:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39743 states. [2021-07-13 23:51:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39743 to 39410. [2021-07-13 23:51:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39410 states, 39346 states have (on average 2.7165404361307375) internal successors, (106885), 39409 states have internal predecessors, (106885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39410 states to 39410 states and 106885 transitions. [2021-07-13 23:51:42,870 INFO L78 Accepts]: Start accepts. Automaton has 39410 states and 106885 transitions. Word has length 74 [2021-07-13 23:51:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:42,870 INFO L482 AbstractCegarLoop]: Abstraction has 39410 states and 106885 transitions. [2021-07-13 23:51:42,870 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) [2021-07-13 23:51:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 39410 states and 106885 transitions. [2021-07-13 23:51:42,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:42,895 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:42,895 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:42,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 23:51:42,895 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:42,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:42,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2077878851, now seen corresponding path program 3 times [2021-07-13 23:51:42,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:42,896 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687207107] [2021-07-13 23:51:42,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:42,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:42,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:42,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:42,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:42,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:42,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:42,972 INFO L142 QuantifierPusher]: treesize reduction 19, result has 59.6 percent of original size [2021-07-13 23:51:42,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:42,985 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-07-13 23:51:42,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:42,998 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.5 percent of original size [2021-07-13 23:51:42,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:51:43,014 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-07-13 23:51:43,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:51:43,032 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-07-13 23:51:43,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:51:43,042 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-07-13 23:51:43,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:51:43,062 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-07-13 23:51:43,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:51:43,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:43,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:43,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:43,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:43,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:43,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:43,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:43,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:43,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:43,240 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:51:43,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:51:43,302 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:43,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:51:43,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:43,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:43,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:43,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687207107] [2021-07-13 23:51:43,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687207107] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:43,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:43,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 23:51:43,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194706198] [2021-07-13 23:51:43,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 23:51:43,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:43,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 23:51:43,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-07-13 23:51:43,374 INFO L87 Difference]: Start difference. First operand 39410 states and 106885 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) [2021-07-13 23:51:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:44,715 INFO L93 Difference]: Finished difference Result 41845 states and 111193 transitions. [2021-07-13 23:51:44,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:51:44,717 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 [2021-07-13 23:51:44,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:44,820 INFO L225 Difference]: With dead ends: 41845 [2021-07-13 23:51:44,820 INFO L226 Difference]: Without dead ends: 40329 [2021-07-13 23:51:44,821 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 758.4ms TimeCoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 23:51:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40329 states. [2021-07-13 23:51:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40329 to 39410. [2021-07-13 23:51:45,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39410 states, 39346 states have (on average 2.7165404361307375) internal successors, (106885), 39409 states have internal predecessors, (106885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39410 states to 39410 states and 106885 transitions. [2021-07-13 23:51:45,907 INFO L78 Accepts]: Start accepts. Automaton has 39410 states and 106885 transitions. Word has length 74 [2021-07-13 23:51:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:45,908 INFO L482 AbstractCegarLoop]: Abstraction has 39410 states and 106885 transitions. [2021-07-13 23:51:45,908 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) [2021-07-13 23:51:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 39410 states and 106885 transitions. [2021-07-13 23:51:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:45,936 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:45,936 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:45,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-13 23:51:45,937 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:45,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:45,937 INFO L82 PathProgramCache]: Analyzing trace with hash -935539021, now seen corresponding path program 4 times [2021-07-13 23:51:45,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:45,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672265255] [2021-07-13 23:51:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:45,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:45,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:45,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:45,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:45,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:45,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:45,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:45,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:46,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:46,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:51:46,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:46,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:46,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:51:46,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:51:46,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:51:46,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:46,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:51:46,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:46,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:46,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:46,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:46,198 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:46,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:46,238 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:46,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:46,289 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:46,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:46,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:46,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:46,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:46,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672265255] [2021-07-13 23:51:46,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672265255] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:46,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:46,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 23:51:46,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726506831] [2021-07-13 23:51:46,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 23:51:46,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:46,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 23:51:46,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:51:46,348 INFO L87 Difference]: Start difference. First operand 39410 states and 106885 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) [2021-07-13 23:51:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:47,344 INFO L93 Difference]: Finished difference Result 41799 states and 111020 transitions. [2021-07-13 23:51:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:51:47,344 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 [2021-07-13 23:51:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:47,442 INFO L225 Difference]: With dead ends: 41799 [2021-07-13 23:51:47,442 INFO L226 Difference]: Without dead ends: 40273 [2021-07-13 23:51:47,443 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 600.9ms TimeCoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2021-07-13 23:51:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40273 states. [2021-07-13 23:51:48,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40273 to 39324. [2021-07-13 23:51:48,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39324 states, 39260 states have (on average 2.716760061130922) internal successors, (106660), 39323 states have internal predecessors, (106660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39324 states to 39324 states and 106660 transitions. [2021-07-13 23:51:48,270 INFO L78 Accepts]: Start accepts. Automaton has 39324 states and 106660 transitions. Word has length 74 [2021-07-13 23:51:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:48,270 INFO L482 AbstractCegarLoop]: Abstraction has 39324 states and 106660 transitions. [2021-07-13 23:51:48,270 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) [2021-07-13 23:51:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 39324 states and 106660 transitions. [2021-07-13 23:51:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:48,295 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:48,295 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:48,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-13 23:51:48,295 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:48,296 INFO L82 PathProgramCache]: Analyzing trace with hash -2142145174, now seen corresponding path program 4 times [2021-07-13 23:51:48,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:48,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943064835] [2021-07-13 23:51:48,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:48,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:48,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:48,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:48,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:48,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:48,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:48,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:48,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:48,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:48,406 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:48,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:48,434 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:48,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:48,486 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:48,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:48,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:48,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:48,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943064835] [2021-07-13 23:51:48,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943064835] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:48,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:48,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 23:51:48,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970995799] [2021-07-13 23:51:48,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 23:51:48,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:48,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 23:51:48,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-07-13 23:51:48,548 INFO L87 Difference]: Start difference. First operand 39324 states and 106660 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) [2021-07-13 23:51:49,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:49,314 INFO L93 Difference]: Finished difference Result 43054 states and 113737 transitions. [2021-07-13 23:51:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 23:51:49,315 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 [2021-07-13 23:51:49,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:49,428 INFO L225 Difference]: With dead ends: 43054 [2021-07-13 23:51:49,428 INFO L226 Difference]: Without dead ends: 42404 [2021-07-13 23:51:49,428 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 319.6ms TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-07-13 23:51:49,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42404 states. [2021-07-13 23:51:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42404 to 39431. [2021-07-13 23:51:50,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39431 states, 39367 states have (on average 2.715675565829248) internal successors, (106908), 39430 states have internal predecessors, (106908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39431 states to 39431 states and 106908 transitions. [2021-07-13 23:51:50,344 INFO L78 Accepts]: Start accepts. Automaton has 39431 states and 106908 transitions. Word has length 74 [2021-07-13 23:51:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:50,344 INFO L482 AbstractCegarLoop]: Abstraction has 39431 states and 106908 transitions. [2021-07-13 23:51:50,344 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) [2021-07-13 23:51:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 39431 states and 106908 transitions. [2021-07-13 23:51:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:50,370 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:50,370 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:50,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-13 23:51:50,371 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:50,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:50,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1489716001, now seen corresponding path program 5 times [2021-07-13 23:51:50,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:50,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115818361] [2021-07-13 23:51:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:50,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:50,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:50,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:51:50,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:50,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:50,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:50,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:50,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:51:50,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:51:50,482 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:50,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:50,512 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:50,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:50,545 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:51:50,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:51:50,582 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:51:50,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:51:50,637 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:50,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:51:50,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:50,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:50,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:50,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115818361] [2021-07-13 23:51:50,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115818361] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:50,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:50,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 23:51:50,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852685187] [2021-07-13 23:51:50,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 23:51:50,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:50,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 23:51:50,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-07-13 23:51:50,929 INFO L87 Difference]: Start difference. First operand 39431 states and 106908 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 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) [2021-07-13 23:51:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:51,610 INFO L93 Difference]: Finished difference Result 41821 states and 111044 transitions. [2021-07-13 23:51:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:51:51,610 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 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 [2021-07-13 23:51:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:51,708 INFO L225 Difference]: With dead ends: 41821 [2021-07-13 23:51:51,708 INFO L226 Difference]: Without dead ends: 40295 [2021-07-13 23:51:51,709 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 648.7ms TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-07-13 23:51:51,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40295 states. [2021-07-13 23:51:52,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40295 to 39338. [2021-07-13 23:51:52,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39338 states, 39274 states have (on average 2.716173549931252) internal successors, (106675), 39337 states have internal predecessors, (106675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39338 states to 39338 states and 106675 transitions. [2021-07-13 23:51:52,825 INFO L78 Accepts]: Start accepts. Automaton has 39338 states and 106675 transitions. Word has length 74 [2021-07-13 23:51:52,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:52,825 INFO L482 AbstractCegarLoop]: Abstraction has 39338 states and 106675 transitions. [2021-07-13 23:51:52,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 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) [2021-07-13 23:51:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 39338 states and 106675 transitions. [2021-07-13 23:51:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:52,850 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:52,850 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:52,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-13 23:51:52,850 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:52,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1251095960, now seen corresponding path program 5 times [2021-07-13 23:51:52,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:52,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265502002] [2021-07-13 23:51:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:52,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:52,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:52,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:52,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:52,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:52,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:52,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:52,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:52,914 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:52,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:52,933 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:52,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:52,955 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:51:52,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:51:53,003 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:53,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:51:53,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:53,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:53,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:53,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265502002] [2021-07-13 23:51:53,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265502002] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:53,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:53,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 23:51:53,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636855978] [2021-07-13 23:51:53,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 23:51:53,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:53,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 23:51:53,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-13 23:51:53,062 INFO L87 Difference]: Start difference. First operand 39338 states and 106675 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 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) [2021-07-13 23:51:53,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:53,520 INFO L93 Difference]: Finished difference Result 40586 states and 107283 transitions. [2021-07-13 23:51:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:51:53,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 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 [2021-07-13 23:51:53,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:53,618 INFO L225 Difference]: With dead ends: 40586 [2021-07-13 23:51:53,618 INFO L226 Difference]: Without dead ends: 39936 [2021-07-13 23:51:53,618 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 244.4ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-13 23:51:53,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39936 states. [2021-07-13 23:51:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39936 to 37395. [2021-07-13 23:51:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37395 states, 37335 states have (on average 2.719191107539842) internal successors, (101521), 37394 states have internal predecessors, (101521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37395 states to 37395 states and 101521 transitions. [2021-07-13 23:51:54,711 INFO L78 Accepts]: Start accepts. Automaton has 37395 states and 101521 transitions. Word has length 74 [2021-07-13 23:51:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:54,711 INFO L482 AbstractCegarLoop]: Abstraction has 37395 states and 101521 transitions. [2021-07-13 23:51:54,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 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) [2021-07-13 23:51:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 37395 states and 101521 transitions. [2021-07-13 23:51:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 23:51:54,732 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:54,732 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:54,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 23:51:54,732 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:54,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:54,733 INFO L82 PathProgramCache]: Analyzing trace with hash -598666787, now seen corresponding path program 6 times [2021-07-13 23:51:54,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:54,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061274400] [2021-07-13 23:51:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:54,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:54,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:54,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:54,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:54,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:54,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:54,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:54,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:51:54,793 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:54,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:54,817 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:54,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:54,838 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:54,863 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:51:54,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:51:54,891 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:51:54,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:51:54,939 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:51:54,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:51:54,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:54,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:54,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:54,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061274400] [2021-07-13 23:51:54,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061274400] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:54,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:54,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 23:51:54,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360653230] [2021-07-13 23:51:54,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 23:51:54,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:54,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 23:51:54,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-13 23:51:54,988 INFO L87 Difference]: Start difference. First operand 37395 states and 101521 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) [2021-07-13 23:51:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:55,444 INFO L93 Difference]: Finished difference Result 38831 states and 103342 transitions. [2021-07-13 23:51:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 23:51:55,444 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 [2021-07-13 23:51:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:55,535 INFO L225 Difference]: With dead ends: 38831 [2021-07-13 23:51:55,535 INFO L226 Difference]: Without dead ends: 37305 [2021-07-13 23:51:55,535 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 269.7ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 23:51:55,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37305 states. [2021-07-13 23:51:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37305 to 36334. [2021-07-13 23:51:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36334 states, 36278 states have (on average 2.72776889574949) internal successors, (98958), 36333 states have internal predecessors, (98958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36334 states to 36334 states and 98958 transitions. [2021-07-13 23:51:56,594 INFO L78 Accepts]: Start accepts. Automaton has 36334 states and 98958 transitions. Word has length 74 [2021-07-13 23:51:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:56,595 INFO L482 AbstractCegarLoop]: Abstraction has 36334 states and 98958 transitions. [2021-07-13 23:51:56,595 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) [2021-07-13 23:51:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 36334 states and 98958 transitions. [2021-07-13 23:51:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 23:51:56,618 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:56,618 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:56,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 23:51:56,618 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:56,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1124391503, now seen corresponding path program 1 times [2021-07-13 23:51:56,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:56,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49842168] [2021-07-13 23:51:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:56,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:56,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:56,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:51:56,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-13 23:51:56,672 INFO L142 QuantifierPusher]: treesize reduction 37, result has 26.0 percent of original size [2021-07-13 23:51:56,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-13 23:51:56,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-13 23:51:56,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:51:56,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:51:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:51:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-13 23:51:56,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-13 23:51:56,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:51:56,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:56,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:56,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:56,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:56,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:56,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49842168] [2021-07-13 23:51:56,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49842168] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:56,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:56,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 23:51:56,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316931624] [2021-07-13 23:51:56,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 23:51:56,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:56,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 23:51:56,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-07-13 23:51:56,766 INFO L87 Difference]: Start difference. First operand 36334 states and 98958 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) [2021-07-13 23:51:57,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:57,296 INFO L93 Difference]: Finished difference Result 43149 states and 117247 transitions. [2021-07-13 23:51:57,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:51:57,297 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 [2021-07-13 23:51:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:57,424 INFO L225 Difference]: With dead ends: 43149 [2021-07-13 23:51:57,424 INFO L226 Difference]: Without dead ends: 34465 [2021-07-13 23:51:57,424 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 240.9ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-07-13 23:51:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34465 states. [2021-07-13 23:51:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34465 to 29830. [2021-07-13 23:51:58,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29830 states, 29790 states have (on average 2.7454850621013764) internal successors, (81788), 29829 states have internal predecessors, (81788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:51:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29830 states to 29830 states and 81788 transitions. [2021-07-13 23:51:58,797 INFO L78 Accepts]: Start accepts. Automaton has 29830 states and 81788 transitions. Word has length 75 [2021-07-13 23:51:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:51:58,798 INFO L482 AbstractCegarLoop]: Abstraction has 29830 states and 81788 transitions. [2021-07-13 23:51:58,798 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) [2021-07-13 23:51:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 29830 states and 81788 transitions. [2021-07-13 23:51:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 23:51:58,842 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:51:58,842 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:51:58,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 23:51:58,842 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:51:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:51:58,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1022303603, now seen corresponding path program 1 times [2021-07-13 23:51:58,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:51:58,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567249395] [2021-07-13 23:51:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:51:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:51:58,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:58,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:51:58,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:58,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:58,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-13 23:51:58,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-13 23:51:58,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:51:58,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:51:58,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:58,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:58,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:51:58,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:51:58,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:51:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:51:58,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:51:58,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567249395] [2021-07-13 23:51:58,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567249395] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:51:58,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:51:58,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 23:51:58,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633053248] [2021-07-13 23:51:58,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 23:51:58,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:51:58,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 23:51:58,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-13 23:51:58,941 INFO L87 Difference]: Start difference. First operand 29830 states and 81788 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) [2021-07-13 23:51:59,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:51:59,458 INFO L93 Difference]: Finished difference Result 41874 states and 117347 transitions. [2021-07-13 23:51:59,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 23:51:59,458 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 [2021-07-13 23:51:59,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:51:59,538 INFO L225 Difference]: With dead ends: 41874 [2021-07-13 23:51:59,538 INFO L226 Difference]: Without dead ends: 31395 [2021-07-13 23:51:59,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 175.1ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:51:59,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31395 states. [2021-07-13 23:52:00,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31395 to 27298. [2021-07-13 23:52:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27298 states, 27258 states have (on average 2.7783403037640326) internal successors, (75732), 27297 states have internal predecessors, (75732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:00,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27298 states to 27298 states and 75732 transitions. [2021-07-13 23:52:00,213 INFO L78 Accepts]: Start accepts. Automaton has 27298 states and 75732 transitions. Word has length 75 [2021-07-13 23:52:00,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:00,214 INFO L482 AbstractCegarLoop]: Abstraction has 27298 states and 75732 transitions. [2021-07-13 23:52:00,214 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) [2021-07-13 23:52:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 27298 states and 75732 transitions. [2021-07-13 23:52:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 23:52:00,229 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:00,230 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:00,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 23:52:00,230 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:00,230 INFO L82 PathProgramCache]: Analyzing trace with hash -295171601, now seen corresponding path program 2 times [2021-07-13 23:52:00,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:00,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869321473] [2021-07-13 23:52:00,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:00,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:00,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:52:00,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:00,267 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-07-13 23:52:00,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:00,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:00,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-13 23:52:00,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-13 23:52:00,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:52:00,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:52:00,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:00,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:52:00,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-13 23:52:00,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:00,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:00,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:00,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869321473] [2021-07-13 23:52:00,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869321473] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:00,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:00,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 23:52:00,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383464384] [2021-07-13 23:52:00,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 23:52:00,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:00,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 23:52:00,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-13 23:52:00,346 INFO L87 Difference]: Start difference. First operand 27298 states and 75732 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) [2021-07-13 23:52:00,695 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-07-13 23:52:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:00,935 INFO L93 Difference]: Finished difference Result 33256 states and 92387 transitions. [2021-07-13 23:52:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 23:52:00,938 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 [2021-07-13 23:52:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:01,003 INFO L225 Difference]: With dead ends: 33256 [2021-07-13 23:52:01,003 INFO L226 Difference]: Without dead ends: 26827 [2021-07-13 23:52:01,004 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 372.0ms TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2021-07-13 23:52:01,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26827 states. [2021-07-13 23:52:01,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26827 to 25586. [2021-07-13 23:52:01,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25586 states, 25546 states have (on average 2.7898692554607374) internal successors, (71270), 25585 states have internal predecessors, (71270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25586 states to 25586 states and 71270 transitions. [2021-07-13 23:52:01,641 INFO L78 Accepts]: Start accepts. Automaton has 25586 states and 71270 transitions. Word has length 75 [2021-07-13 23:52:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:01,641 INFO L482 AbstractCegarLoop]: Abstraction has 25586 states and 71270 transitions. [2021-07-13 23:52:01,641 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) [2021-07-13 23:52:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 25586 states and 71270 transitions. [2021-07-13 23:52:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-13 23:52:01,661 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:01,661 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:01,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-13 23:52:01,661 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:01,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:01,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1793725864, now seen corresponding path program 1 times [2021-07-13 23:52:01,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:01,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878431950] [2021-07-13 23:52:01,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:01,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:01,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:01,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-13 23:52:01,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:01,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:01,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:01,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:01,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:01,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:01,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:01,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:01,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:01,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:01,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-13 23:52:01,944 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-07-13 23:52:01,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:52:01,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:52:01,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:01,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-07-13 23:52:02,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-07-13 23:52:02,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:02,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-07-13 23:52:02,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-07-13 23:52:02,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-13 23:52:02,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-13 23:52:02,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-07-13 23:52:02,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-07-13 23:52:02,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-07-13 23:52:02,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-13 23:52:02,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-07-13 23:52:02,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:02,411 INFO L142 QuantifierPusher]: treesize reduction 13, result has 96.9 percent of original size [2021-07-13 23:52:02,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 401 [2021-07-13 23:52:02,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:02,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:02,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:02,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878431950] [2021-07-13 23:52:02,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878431950] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:02,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:02,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 23:52:02,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116933449] [2021-07-13 23:52:02,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 23:52:02,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:02,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 23:52:02,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-13 23:52:02,508 INFO L87 Difference]: Start difference. First operand 25586 states and 71270 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) [2021-07-13 23:52:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:04,739 INFO L93 Difference]: Finished difference Result 31500 states and 83900 transitions. [2021-07-13 23:52:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:52:04,740 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 [2021-07-13 23:52:04,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:04,847 INFO L225 Difference]: With dead ends: 31500 [2021-07-13 23:52:04,847 INFO L226 Difference]: Without dead ends: 30953 [2021-07-13 23:52:04,848 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1742.0ms TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2021-07-13 23:52:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30953 states. [2021-07-13 23:52:05,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30953 to 26768. [2021-07-13 23:52:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26768 states, 26728 states have (on average 2.7875636037114635) internal successors, (74506), 26767 states have internal predecessors, (74506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:05,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26768 states to 26768 states and 74506 transitions. [2021-07-13 23:52:05,574 INFO L78 Accepts]: Start accepts. Automaton has 26768 states and 74506 transitions. Word has length 77 [2021-07-13 23:52:05,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:05,575 INFO L482 AbstractCegarLoop]: Abstraction has 26768 states and 74506 transitions. [2021-07-13 23:52:05,575 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) [2021-07-13 23:52:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 26768 states and 74506 transitions. [2021-07-13 23:52:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-13 23:52:05,597 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:05,598 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:05,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-13 23:52:05,598 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:05,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:05,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1288624612, now seen corresponding path program 2 times [2021-07-13 23:52:05,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:05,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902107489] [2021-07-13 23:52:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:05,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:05,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:05,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:05,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:05,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:05,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:05,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:05,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:52:05,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-13 23:52:05,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:05,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:05,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:05,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:05,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:05,853 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-07-13 23:52:05,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:05,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:05,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:05,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:05,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:05,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:05,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:05,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:06,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:06,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:06,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:06,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:06,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:06,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:06,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:06,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:06,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:06,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:06,173 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:06,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:06,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:06,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:06,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:06,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902107489] [2021-07-13 23:52:06,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902107489] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:06,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:06,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-07-13 23:52:06,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451492989] [2021-07-13 23:52:06,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-13 23:52:06,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:06,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-13 23:52:06,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-07-13 23:52:06,249 INFO L87 Difference]: Start difference. First operand 26768 states and 74506 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) [2021-07-13 23:52:06,889 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-07-13 23:52:07,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:07,412 INFO L93 Difference]: Finished difference Result 21265 states and 55213 transitions. [2021-07-13 23:52:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:52:07,412 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 [2021-07-13 23:52:07,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:07,459 INFO L225 Difference]: With dead ends: 21265 [2021-07-13 23:52:07,459 INFO L226 Difference]: Without dead ends: 20914 [2021-07-13 23:52:07,460 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1075.6ms TimeCoverageRelationStatistics Valid=162, Invalid=1170, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 23:52:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20914 states. [2021-07-13 23:52:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20914 to 17966. [2021-07-13 23:52:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17966 states, 17941 states have (on average 2.6730394069449863) internal successors, (47957), 17965 states have internal predecessors, (47957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17966 states to 17966 states and 47957 transitions. [2021-07-13 23:52:07,928 INFO L78 Accepts]: Start accepts. Automaton has 17966 states and 47957 transitions. Word has length 77 [2021-07-13 23:52:07,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:07,928 INFO L482 AbstractCegarLoop]: Abstraction has 17966 states and 47957 transitions. [2021-07-13 23:52:07,928 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) [2021-07-13 23:52:07,928 INFO L276 IsEmpty]: Start isEmpty. Operand 17966 states and 47957 transitions. [2021-07-13 23:52:07,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-13 23:52:07,942 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:07,942 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:07,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-13 23:52:07,943 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:07,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:07,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1913520793, now seen corresponding path program 1 times [2021-07-13 23:52:07,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:07,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267103654] [2021-07-13 23:52:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:08,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:08,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:08,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:08,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:08,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:08,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:08,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:52:08,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:52:08,113 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-07-13 23:52:08,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-13 23:52:08,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:52:08,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-13 23:52:08,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-13 23:52:08,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:52:08,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:52:08,267 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-07-13 23:52:08,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:08,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:08,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:08,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:08,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:08,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:08,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-13 23:52:08,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:08,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:08,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:08,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:08,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:52:08,670 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:08,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:08,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:08,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:08,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:08,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267103654] [2021-07-13 23:52:08,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267103654] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:08,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:08,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 23:52:08,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945979864] [2021-07-13 23:52:08,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 23:52:08,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:08,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 23:52:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:52:08,726 INFO L87 Difference]: Start difference. First operand 17966 states and 47957 transitions. Second operand has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 22 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) [2021-07-13 23:52:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:09,757 INFO L93 Difference]: Finished difference Result 14660 states and 36612 transitions. [2021-07-13 23:52:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:52:09,757 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 22 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 [2021-07-13 23:52:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:09,787 INFO L225 Difference]: With dead ends: 14660 [2021-07-13 23:52:09,787 INFO L226 Difference]: Without dead ends: 14182 [2021-07-13 23:52:09,787 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1132.8ms TimeCoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 23:52:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14182 states. [2021-07-13 23:52:09,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14182 to 12817. [2021-07-13 23:52:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12817 states, 12798 states have (on average 2.571104860134396) internal successors, (32905), 12816 states have internal predecessors, (32905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12817 states to 12817 states and 32905 transitions. [2021-07-13 23:52:10,011 INFO L78 Accepts]: Start accepts. Automaton has 12817 states and 32905 transitions. Word has length 79 [2021-07-13 23:52:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:10,012 INFO L482 AbstractCegarLoop]: Abstraction has 12817 states and 32905 transitions. [2021-07-13 23:52:10,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 22 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) [2021-07-13 23:52:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12817 states and 32905 transitions. [2021-07-13 23:52:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-13 23:52:10,022 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:10,022 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:10,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-13 23:52:10,023 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:10,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1142083782, now seen corresponding path program 1 times [2021-07-13 23:52:10,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:10,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296287764] [2021-07-13 23:52:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:10,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:10,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:10,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:10,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:10,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:10,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:10,120 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-07-13 23:52:10,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:10,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:10,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:10,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:52:10,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-13 23:52:10,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-13 23:52:10,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:52:10,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:52:10,358 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-07-13 23:52:10,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:10,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:10,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:10,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:10,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:10,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:10,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:10,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:10,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:10,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:10,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:10,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:10,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:10,793 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:10,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:10,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:10,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:10,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296287764] [2021-07-13 23:52:10,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296287764] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:10,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:10,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-07-13 23:52:10,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191355843] [2021-07-13 23:52:10,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-13 23:52:10,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:10,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-13 23:52:10,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2021-07-13 23:52:10,852 INFO L87 Difference]: Start difference. First operand 12817 states and 32905 transitions. Second operand has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 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) [2021-07-13 23:52:11,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:11,965 INFO L93 Difference]: Finished difference Result 11299 states and 27270 transitions. [2021-07-13 23:52:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 23:52:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 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 [2021-07-13 23:52:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:11,989 INFO L225 Difference]: With dead ends: 11299 [2021-07-13 23:52:11,989 INFO L226 Difference]: Without dead ends: 10395 [2021-07-13 23:52:11,989 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1105.9ms TimeCoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 23:52:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10395 states. [2021-07-13 23:52:12,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10395 to 9359. [2021-07-13 23:52:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 9344 states have (on average 2.506314212328767) internal successors, (23419), 9358 states have internal predecessors, (23419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 23419 transitions. [2021-07-13 23:52:12,191 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 23419 transitions. Word has length 79 [2021-07-13 23:52:12,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:12,191 INFO L482 AbstractCegarLoop]: Abstraction has 9359 states and 23419 transitions. [2021-07-13 23:52:12,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 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) [2021-07-13 23:52:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 23419 transitions. [2021-07-13 23:52:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:12,198 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:12,198 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:12,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-13 23:52:12,199 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:12,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1533541463, now seen corresponding path program 1 times [2021-07-13 23:52:12,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:12,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734760786] [2021-07-13 23:52:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:12,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:12,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:12,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-13 23:52:12,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:12,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:12,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-13 23:52:12,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:12,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:12,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:12,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:12,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:12,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:52:12,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:52:12,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:52:12,437 INFO L142 QuantifierPusher]: treesize reduction 29, result has 78.2 percent of original size [2021-07-13 23:52:12,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-07-13 23:52:12,507 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:52:12,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:52:12,556 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:52:12,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:52:12,619 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:52:12,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:52:12,685 INFO L142 QuantifierPusher]: treesize reduction 32, result has 87.3 percent of original size [2021-07-13 23:52:12,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-07-13 23:52:12,764 INFO L142 QuantifierPusher]: treesize reduction 13, result has 97.0 percent of original size [2021-07-13 23:52:12,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 415 [2021-07-13 23:52:12,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:12,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:12,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:12,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734760786] [2021-07-13 23:52:12,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734760786] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:12,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:12,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 23:52:12,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745384811] [2021-07-13 23:52:12,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 23:52:12,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:12,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 23:52:12,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-07-13 23:52:12,842 INFO L87 Difference]: Start difference. First operand 9359 states and 23419 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) [2021-07-13 23:52:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:14,403 INFO L93 Difference]: Finished difference Result 10147 states and 24770 transitions. [2021-07-13 23:52:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:52:14,403 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 [2021-07-13 23:52:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:14,420 INFO L225 Difference]: With dead ends: 10147 [2021-07-13 23:52:14,420 INFO L226 Difference]: Without dead ends: 9378 [2021-07-13 23:52:14,421 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1455.4ms TimeCoverageRelationStatistics Valid=187, Invalid=1453, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 23:52:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2021-07-13 23:52:14,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 9359. [2021-07-13 23:52:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 9344 states have (on average 2.5062071917808217) internal successors, (23418), 9358 states have internal predecessors, (23418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:14,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 23418 transitions. [2021-07-13 23:52:14,559 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 23418 transitions. Word has length 80 [2021-07-13 23:52:14,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:14,559 INFO L482 AbstractCegarLoop]: Abstraction has 9359 states and 23418 transitions. [2021-07-13 23:52:14,559 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) [2021-07-13 23:52:14,559 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 23418 transitions. [2021-07-13 23:52:14,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:14,566 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:14,566 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:14,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 23:52:14,566 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:14,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1505242881, now seen corresponding path program 2 times [2021-07-13 23:52:14,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:14,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15224719] [2021-07-13 23:52:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:14,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:14,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:14,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:14,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:14,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:14,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:52:14,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-13 23:52:14,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:14,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:14,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:14,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:14,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:14,795 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-07-13 23:52:14,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:14,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:14,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:14,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:14,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:14,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:14,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:14,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:14,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:14,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:14,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:14,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:15,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:15,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:15,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:15,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:15,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:15,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:15,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:15,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:15,135 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:15,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:15,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:15,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:15,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:15,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15224719] [2021-07-13 23:52:15,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15224719] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:15,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:15,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 23:52:15,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2819704] [2021-07-13 23:52:15,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 23:52:15,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:15,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 23:52:15,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-13 23:52:15,201 INFO L87 Difference]: Start difference. First operand 9359 states and 23418 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) [2021-07-13 23:52:16,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:16,368 INFO L93 Difference]: Finished difference Result 9980 states and 24554 transitions. [2021-07-13 23:52:16,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:52:16,368 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 [2021-07-13 23:52:16,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:16,385 INFO L225 Difference]: With dead ends: 9980 [2021-07-13 23:52:16,385 INFO L226 Difference]: Without dead ends: 8886 [2021-07-13 23:52:16,386 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1023.4ms TimeCoverageRelationStatistics Valid=179, Invalid=1543, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 23:52:16,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8886 states. [2021-07-13 23:52:16,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8886 to 8886. [2021-07-13 23:52:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8886 states, 8871 states have (on average 2.5251944538383495) internal successors, (22401), 8885 states have internal predecessors, (22401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:16,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8886 states to 8886 states and 22401 transitions. [2021-07-13 23:52:16,515 INFO L78 Accepts]: Start accepts. Automaton has 8886 states and 22401 transitions. Word has length 80 [2021-07-13 23:52:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:16,515 INFO L482 AbstractCegarLoop]: Abstraction has 8886 states and 22401 transitions. [2021-07-13 23:52:16,515 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) [2021-07-13 23:52:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 8886 states and 22401 transitions. [2021-07-13 23:52:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:16,522 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:16,522 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:16,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-13 23:52:16,522 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:16,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:16,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1338605011, now seen corresponding path program 3 times [2021-07-13 23:52:16,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:16,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539251237] [2021-07-13 23:52:16,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:16,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:16,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:52:16,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:16,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:52:16,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:16,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:52:16,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:16,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:16,638 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:16,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:16,657 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.0 percent of original size [2021-07-13 23:52:16,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:16,688 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.5 percent of original size [2021-07-13 23:52:16,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:16,698 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.5 percent of original size [2021-07-13 23:52:16,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-13 23:52:16,731 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.0 percent of original size [2021-07-13 23:52:16,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:16,741 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-07-13 23:52:16,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-13 23:52:16,771 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-07-13 23:52:16,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:16,783 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-07-13 23:52:16,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:16,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-13 23:52:16,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:16,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:16,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:16,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:16,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-07-13 23:52:17,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:17,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-07-13 23:52:17,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:17,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:52:17,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:17,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:17,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:17,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:17,098 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:17,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:17,153 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:17,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:17,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:17,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:17,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:17,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539251237] [2021-07-13 23:52:17,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539251237] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:17,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:17,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 23:52:17,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202546742] [2021-07-13 23:52:17,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 23:52:17,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:17,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 23:52:17,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 23:52:17,211 INFO L87 Difference]: Start difference. First operand 8886 states and 22401 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) [2021-07-13 23:52:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:18,096 INFO L93 Difference]: Finished difference Result 9580 states and 23648 transitions. [2021-07-13 23:52:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 23:52:18,097 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 [2021-07-13 23:52:18,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:18,115 INFO L225 Difference]: With dead ends: 9580 [2021-07-13 23:52:18,115 INFO L226 Difference]: Without dead ends: 8879 [2021-07-13 23:52:18,116 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 941.2ms TimeCoverageRelationStatistics Valid=166, Invalid=1316, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 23:52:18,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8879 states. [2021-07-13 23:52:18,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8879 to 8879. [2021-07-13 23:52:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8879 states, 8864 states have (on average 2.526173285198556) internal successors, (22392), 8878 states have internal predecessors, (22392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 22392 transitions. [2021-07-13 23:52:18,245 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 22392 transitions. Word has length 80 [2021-07-13 23:52:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:18,245 INFO L482 AbstractCegarLoop]: Abstraction has 8879 states and 22392 transitions. [2021-07-13 23:52:18,245 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) [2021-07-13 23:52:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 22392 transitions. [2021-07-13 23:52:18,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:18,252 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:18,252 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:18,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-13 23:52:18,252 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:18,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1941310725, now seen corresponding path program 4 times [2021-07-13 23:52:18,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:18,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341994914] [2021-07-13 23:52:18,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:18,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:18,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:52:18,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:18,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:52:18,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:18,324 INFO L142 QuantifierPusher]: treesize reduction 19, result has 59.6 percent of original size [2021-07-13 23:52:18,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:52:18,336 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-07-13 23:52:18,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:18,349 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.5 percent of original size [2021-07-13 23:52:18,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:18,364 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-07-13 23:52:18,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:18,381 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-07-13 23:52:18,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:18,392 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-07-13 23:52:18,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:18,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-07-13 23:52:18,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:18,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:18,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:18,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:18,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:18,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:18,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:18,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:52:18,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:18,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:18,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:18,592 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:18,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:18,621 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:52:18,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:52:18,672 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:18,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:52:18,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:18,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:18,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:18,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341994914] [2021-07-13 23:52:18,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341994914] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:18,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:18,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 23:52:18,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793127240] [2021-07-13 23:52:18,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 23:52:18,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:18,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 23:52:18,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 23:52:18,778 INFO L87 Difference]: Start difference. First operand 8879 states and 22392 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) [2021-07-13 23:52:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:19,639 INFO L93 Difference]: Finished difference Result 9610 states and 23680 transitions. [2021-07-13 23:52:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 23:52:19,640 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 [2021-07-13 23:52:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:19,656 INFO L225 Difference]: With dead ends: 9610 [2021-07-13 23:52:19,656 INFO L226 Difference]: Without dead ends: 8873 [2021-07-13 23:52:19,656 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 754.1ms TimeCoverageRelationStatistics Valid=144, Invalid=1116, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 23:52:19,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8873 states. [2021-07-13 23:52:19,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8873 to 8873. [2021-07-13 23:52:19,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8858 states have (on average 2.5269812598780765) internal successors, (22384), 8872 states have internal predecessors, (22384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 22384 transitions. [2021-07-13 23:52:19,780 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 22384 transitions. Word has length 80 [2021-07-13 23:52:19,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:19,781 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 22384 transitions. [2021-07-13 23:52:19,781 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) [2021-07-13 23:52:19,781 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 22384 transitions. [2021-07-13 23:52:19,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:19,787 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:19,787 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:19,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-13 23:52:19,787 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:19,787 INFO L82 PathProgramCache]: Analyzing trace with hash 522171771, now seen corresponding path program 5 times [2021-07-13 23:52:19,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:19,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899550677] [2021-07-13 23:52:19,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:19,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:19,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:52:19,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:19,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:52:19,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:19,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:52:19,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:19,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:19,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:19,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:19,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:19,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:19,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:19,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:19,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:52:19,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:19,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:19,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:20,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:20,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:20,014 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:20,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:20,038 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:20,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:20,065 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:52:20,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:52:20,130 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:20,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:52:20,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:20,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:20,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:20,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899550677] [2021-07-13 23:52:20,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899550677] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:20,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:20,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 23:52:20,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165025181] [2021-07-13 23:52:20,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 23:52:20,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:20,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 23:52:20,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 23:52:20,190 INFO L87 Difference]: Start difference. First operand 8873 states and 22384 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) [2021-07-13 23:52:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:20,919 INFO L93 Difference]: Finished difference Result 9634 states and 23706 transitions. [2021-07-13 23:52:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:52:20,919 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 [2021-07-13 23:52:20,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:20,936 INFO L225 Difference]: With dead ends: 9634 [2021-07-13 23:52:20,936 INFO L226 Difference]: Without dead ends: 8873 [2021-07-13 23:52:20,936 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 615.3ms TimeCoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2021-07-13 23:52:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8873 states. [2021-07-13 23:52:21,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8873 to 8873. [2021-07-13 23:52:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8858 states have (on average 2.526868367577331) internal successors, (22383), 8872 states have internal predecessors, (22383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 22383 transitions. [2021-07-13 23:52:21,064 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 22383 transitions. Word has length 80 [2021-07-13 23:52:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:21,064 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 22383 transitions. [2021-07-13 23:52:21,064 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) [2021-07-13 23:52:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 22383 transitions. [2021-07-13 23:52:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:21,071 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:21,071 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:21,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-13 23:52:21,071 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:21,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:21,071 INFO L82 PathProgramCache]: Analyzing trace with hash -880848217, now seen corresponding path program 6 times [2021-07-13 23:52:21,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:21,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205833804] [2021-07-13 23:52:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:21,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:21,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:52:21,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-13 23:52:21,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-13 23:52:21,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:21,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:52:21,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:21,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:21,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-13 23:52:21,169 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:21,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:21,192 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:21,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:21,216 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:21,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:21,242 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:21,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:21,269 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:21,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:21,334 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:21,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:21,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:21,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:21,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:21,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205833804] [2021-07-13 23:52:21,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205833804] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:21,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:21,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 23:52:21,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166624762] [2021-07-13 23:52:21,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 23:52:21,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:21,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 23:52:21,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-07-13 23:52:21,385 INFO L87 Difference]: Start difference. First operand 8873 states and 22383 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 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) [2021-07-13 23:52:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:21,897 INFO L93 Difference]: Finished difference Result 9656 states and 23729 transitions. [2021-07-13 23:52:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:52:21,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 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 [2021-07-13 23:52:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:21,914 INFO L225 Difference]: With dead ends: 9656 [2021-07-13 23:52:21,914 INFO L226 Difference]: Without dead ends: 8873 [2021-07-13 23:52:21,914 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 425.1ms TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2021-07-13 23:52:21,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8873 states. [2021-07-13 23:52:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8873 to 8873. [2021-07-13 23:52:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8858 states have (on average 2.526755475276586) internal successors, (22382), 8872 states have internal predecessors, (22382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 22382 transitions. [2021-07-13 23:52:22,044 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 22382 transitions. Word has length 80 [2021-07-13 23:52:22,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:22,044 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 22382 transitions. [2021-07-13 23:52:22,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 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) [2021-07-13 23:52:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 22382 transitions. [2021-07-13 23:52:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 23:52:22,050 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:22,050 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:22,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-13 23:52:22,051 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:22,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:22,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1015320283, now seen corresponding path program 7 times [2021-07-13 23:52:22,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:22,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700109947] [2021-07-13 23:52:22,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:22,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:22,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:52:22,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:22,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:22,109 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:22,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:22,128 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:22,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:22,148 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:22,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:22,171 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:22,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:22,191 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-07-13 23:52:22,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:22,213 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:52:22,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:52:22,257 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:22,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:52:22,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:22,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:22,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:22,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700109947] [2021-07-13 23:52:22,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700109947] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:22,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:22,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 23:52:22,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106760682] [2021-07-13 23:52:22,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 23:52:22,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:22,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 23:52:22,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-07-13 23:52:22,314 INFO L87 Difference]: Start difference. First operand 8873 states and 22382 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) [2021-07-13 23:52:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:22,630 INFO L93 Difference]: Finished difference Result 6864 states and 16891 transitions. [2021-07-13 23:52:22,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 23:52:22,630 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 [2021-07-13 23:52:22,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:22,641 INFO L225 Difference]: With dead ends: 6864 [2021-07-13 23:52:22,641 INFO L226 Difference]: Without dead ends: 6072 [2021-07-13 23:52:22,641 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 282.5ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-13 23:52:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2021-07-13 23:52:22,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 6072. [2021-07-13 23:52:22,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6072 states, 6065 states have (on average 2.5614179719703216) internal successors, (15535), 6071 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6072 states to 6072 states and 15535 transitions. [2021-07-13 23:52:22,718 INFO L78 Accepts]: Start accepts. Automaton has 6072 states and 15535 transitions. Word has length 80 [2021-07-13 23:52:22,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:22,718 INFO L482 AbstractCegarLoop]: Abstraction has 6072 states and 15535 transitions. [2021-07-13 23:52:22,718 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) [2021-07-13 23:52:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6072 states and 15535 transitions. [2021-07-13 23:52:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:22,723 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:22,723 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:22,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-13 23:52:22,723 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:22,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1437600002, now seen corresponding path program 1 times [2021-07-13 23:52:22,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:22,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151823345] [2021-07-13 23:52:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:22,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:22,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:22,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:22,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:22,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:22,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:22,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:22,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:52:22,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:52:22,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:22,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:52:22,866 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-07-13 23:52:22,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:22,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:22,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:22,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:22,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:22,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:22,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:22,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:22,963 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:22,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:22,998 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:23,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:23,052 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:23,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:23,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:23,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:23,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:23,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151823345] [2021-07-13 23:52:23,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151823345] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:23,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:23,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 23:52:23,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289533102] [2021-07-13 23:52:23,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 23:52:23,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:23,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 23:52:23,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 23:52:23,114 INFO L87 Difference]: Start difference. First operand 6072 states and 15535 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) [2021-07-13 23:52:23,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:23,794 INFO L93 Difference]: Finished difference Result 6775 states and 16867 transitions. [2021-07-13 23:52:23,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:52:23,795 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 [2021-07-13 23:52:23,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:23,810 INFO L225 Difference]: With dead ends: 6775 [2021-07-13 23:52:23,811 INFO L226 Difference]: Without dead ends: 6421 [2021-07-13 23:52:23,811 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 620.2ms TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2021-07-13 23:52:23,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6421 states. [2021-07-13 23:52:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6421 to 6111. [2021-07-13 23:52:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6111 states, 6104 states have (on average 2.552096985583224) internal successors, (15578), 6110 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6111 states to 6111 states and 15578 transitions. [2021-07-13 23:52:23,917 INFO L78 Accepts]: Start accepts. Automaton has 6111 states and 15578 transitions. Word has length 82 [2021-07-13 23:52:23,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:23,917 INFO L482 AbstractCegarLoop]: Abstraction has 6111 states and 15578 transitions. [2021-07-13 23:52:23,917 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) [2021-07-13 23:52:23,917 INFO L276 IsEmpty]: Start isEmpty. Operand 6111 states and 15578 transitions. [2021-07-13 23:52:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:23,922 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:23,922 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:23,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-13 23:52:23,922 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:23,923 INFO L82 PathProgramCache]: Analyzing trace with hash 75923464, now seen corresponding path program 1 times [2021-07-13 23:52:23,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:23,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505418232] [2021-07-13 23:52:23,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:23,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:23,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:23,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:23,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:23,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:23,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:23,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:23,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:23,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:23,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:24,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:24,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:24,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:52:24,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-13 23:52:24,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:24,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-13 23:52:24,070 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-07-13 23:52:24,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:24,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:24,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:24,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:24,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:24,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:24,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:24,169 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:24,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:24,199 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:24,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:24,232 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:24,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:24,284 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:24,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:24,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:24,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:24,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:24,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505418232] [2021-07-13 23:52:24,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505418232] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:24,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:24,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 23:52:24,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884618242] [2021-07-13 23:52:24,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 23:52:24,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:24,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 23:52:24,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-13 23:52:24,343 INFO L87 Difference]: Start difference. First operand 6111 states and 15578 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) [2021-07-13 23:52:25,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:25,075 INFO L93 Difference]: Finished difference Result 6360 states and 16043 transitions. [2021-07-13 23:52:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:52:25,076 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 [2021-07-13 23:52:25,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:25,086 INFO L225 Difference]: With dead ends: 6360 [2021-07-13 23:52:25,086 INFO L226 Difference]: Without dead ends: 6071 [2021-07-13 23:52:25,087 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 672.1ms TimeCoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 23:52:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6071 states. [2021-07-13 23:52:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6071 to 6071. [2021-07-13 23:52:25,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6071 states, 6064 states have (on average 2.56151055408971) internal successors, (15533), 6070 states have internal predecessors, (15533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6071 states to 6071 states and 15533 transitions. [2021-07-13 23:52:25,168 INFO L78 Accepts]: Start accepts. Automaton has 6071 states and 15533 transitions. Word has length 82 [2021-07-13 23:52:25,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:25,168 INFO L482 AbstractCegarLoop]: Abstraction has 6071 states and 15533 transitions. [2021-07-13 23:52:25,168 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) [2021-07-13 23:52:25,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6071 states and 15533 transitions. [2021-07-13 23:52:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:25,174 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:25,174 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:25,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-13 23:52:25,174 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:25,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:25,174 INFO L82 PathProgramCache]: Analyzing trace with hash 766621318, now seen corresponding path program 2 times [2021-07-13 23:52:25,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:25,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306577109] [2021-07-13 23:52:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:25,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:25,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:25,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:25,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:25,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:25,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:25,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:52:25,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:25,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:25,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:25,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:25,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:25,353 INFO L142 QuantifierPusher]: treesize reduction 21, result has 59.6 percent of original size [2021-07-13 23:52:25,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:25,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:25,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:25,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:25,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:25,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:25,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:25,523 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:25,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:25,557 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:25,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:25,624 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:25,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:25,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:25,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:25,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:25,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306577109] [2021-07-13 23:52:25,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306577109] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:25,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:25,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 23:52:25,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316895800] [2021-07-13 23:52:25,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 23:52:25,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:25,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 23:52:25,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-13 23:52:25,699 INFO L87 Difference]: Start difference. First operand 6071 states and 15533 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) [2021-07-13 23:52:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:26,541 INFO L93 Difference]: Finished difference Result 6756 states and 16845 transitions. [2021-07-13 23:52:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:52:26,541 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 [2021-07-13 23:52:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:26,554 INFO L225 Difference]: With dead ends: 6756 [2021-07-13 23:52:26,554 INFO L226 Difference]: Without dead ends: 6402 [2021-07-13 23:52:26,555 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 817.4ms TimeCoverageRelationStatistics Valid=127, Invalid=929, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 23:52:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2021-07-13 23:52:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 6092. [2021-07-13 23:52:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6092 states, 6085 states have (on average 2.5564502875924404) internal successors, (15556), 6091 states have internal predecessors, (15556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6092 states to 6092 states and 15556 transitions. [2021-07-13 23:52:26,636 INFO L78 Accepts]: Start accepts. Automaton has 6092 states and 15556 transitions. Word has length 82 [2021-07-13 23:52:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:26,636 INFO L482 AbstractCegarLoop]: Abstraction has 6092 states and 15556 transitions. [2021-07-13 23:52:26,636 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) [2021-07-13 23:52:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6092 states and 15556 transitions. [2021-07-13 23:52:26,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:26,641 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:26,642 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:26,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-13 23:52:26,642 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:26,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2014822512, now seen corresponding path program 2 times [2021-07-13 23:52:26,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:26,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127693101] [2021-07-13 23:52:26,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:26,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:26,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:26,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-13 23:52:26,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-13 23:52:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:26,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:26,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-13 23:52:26,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:26,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:26,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-13 23:52:26,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:26,869 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size [2021-07-13 23:52:26,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:26,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:26,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:52:26,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:52:26,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:26,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:26,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-13 23:52:27,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:27,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-07-13 23:52:27,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:27,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-07-13 23:52:27,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:27,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:52:27,074 INFO L142 QuantifierPusher]: treesize reduction 29, result has 78.2 percent of original size [2021-07-13 23:52:27,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-07-13 23:52:27,151 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:52:27,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:52:27,222 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-07-13 23:52:27,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-07-13 23:52:27,299 INFO L142 QuantifierPusher]: treesize reduction 32, result has 87.3 percent of original size [2021-07-13 23:52:27,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-07-13 23:52:27,369 INFO L142 QuantifierPusher]: treesize reduction 13, result has 97.0 percent of original size [2021-07-13 23:52:27,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 415 [2021-07-13 23:52:27,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:27,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:27,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:27,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127693101] [2021-07-13 23:52:27,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127693101] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:27,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:27,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 23:52:27,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891450344] [2021-07-13 23:52:27,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 23:52:27,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:27,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 23:52:27,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-07-13 23:52:27,453 INFO L87 Difference]: Start difference. First operand 6092 states and 15556 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) [2021-07-13 23:52:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:28,733 INFO L93 Difference]: Finished difference Result 6389 states and 16076 transitions. [2021-07-13 23:52:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:52:28,734 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 [2021-07-13 23:52:28,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:28,744 INFO L225 Difference]: With dead ends: 6389 [2021-07-13 23:52:28,744 INFO L226 Difference]: Without dead ends: 6101 [2021-07-13 23:52:28,745 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1438.4ms TimeCoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 23:52:28,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6101 states. [2021-07-13 23:52:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6101 to 6093. [2021-07-13 23:52:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 6086 states have (on average 2.556358856391719) internal successors, (15558), 6092 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 15558 transitions. [2021-07-13 23:52:28,836 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 15558 transitions. Word has length 82 [2021-07-13 23:52:28,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:28,836 INFO L482 AbstractCegarLoop]: Abstraction has 6093 states and 15558 transitions. [2021-07-13 23:52:28,836 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) [2021-07-13 23:52:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 15558 transitions. [2021-07-13 23:52:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:28,841 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:28,841 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:28,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-13 23:52:28,841 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:28,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:28,842 INFO L82 PathProgramCache]: Analyzing trace with hash -324167506, now seen corresponding path program 3 times [2021-07-13 23:52:28,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:28,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546071780] [2021-07-13 23:52:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:28,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:28,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:28,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:28,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:28,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-13 23:52:28,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:28,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-13 23:52:29,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:29,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:29,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-13 23:52:29,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-13 23:52:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:29,119 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-07-13 23:52:29,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:29,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:29,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-13 23:52:29,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:29,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:29,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:29,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:29,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:29,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:29,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:29,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:29,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:29,488 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-07-13 23:52:29,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-07-13 23:52:29,562 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:29,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-07-13 23:52:29,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:29,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:29,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:29,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546071780] [2021-07-13 23:52:29,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546071780] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:29,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:29,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-13 23:52:29,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816587740] [2021-07-13 23:52:29,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-13 23:52:29,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:29,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-13 23:52:29,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-07-13 23:52:29,642 INFO L87 Difference]: Start difference. First operand 6093 states and 15558 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) [2021-07-13 23:52:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:30,614 INFO L93 Difference]: Finished difference Result 6049 states and 15291 transitions. [2021-07-13 23:52:30,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 23:52:30,614 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 [2021-07-13 23:52:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:30,625 INFO L225 Difference]: With dead ends: 6049 [2021-07-13 23:52:30,625 INFO L226 Difference]: Without dead ends: 5521 [2021-07-13 23:52:30,626 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1125.4ms TimeCoverageRelationStatistics Valid=158, Invalid=1324, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 23:52:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2021-07-13 23:52:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5521. [2021-07-13 23:52:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5521 states, 5514 states have (on average 2.5973884657236126) internal successors, (14322), 5520 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 14322 transitions. [2021-07-13 23:52:30,701 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 14322 transitions. Word has length 82 [2021-07-13 23:52:30,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:30,701 INFO L482 AbstractCegarLoop]: Abstraction has 5521 states and 14322 transitions. [2021-07-13 23:52:30,701 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) [2021-07-13 23:52:30,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 14322 transitions. [2021-07-13 23:52:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:30,706 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:30,706 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:30,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-13 23:52:30,706 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:30,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:30,706 INFO L82 PathProgramCache]: Analyzing trace with hash -333683022, now seen corresponding path program 3 times [2021-07-13 23:52:30,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:30,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671061844] [2021-07-13 23:52:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:30,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:30,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:30,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:30,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:30,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:30,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:52:30,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:52:30,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:30,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:52:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-13 23:52:30,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-13 23:52:30,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:30,942 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-07-13 23:52:30,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:30,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-13 23:52:30,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:30,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:31,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-13 23:52:31,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:31,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:31,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:31,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:31,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:31,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:31,213 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:31,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:31,280 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:31,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:31,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:31,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:31,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:31,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671061844] [2021-07-13 23:52:31,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671061844] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:31,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:31,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 23:52:31,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856062283] [2021-07-13 23:52:31,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 23:52:31,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:31,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 23:52:31,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:52:31,361 INFO L87 Difference]: Start difference. First operand 5521 states and 14322 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) [2021-07-13 23:52:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:32,211 INFO L93 Difference]: Finished difference Result 3534 states and 8414 transitions. [2021-07-13 23:52:32,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:52:32,212 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 [2021-07-13 23:52:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:32,217 INFO L225 Difference]: With dead ends: 3534 [2021-07-13 23:52:32,217 INFO L226 Difference]: Without dead ends: 3180 [2021-07-13 23:52:32,217 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 990.0ms TimeCoverageRelationStatistics Valid=146, Invalid=1114, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 23:52:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2021-07-13 23:52:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2849. [2021-07-13 23:52:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2845 states have (on average 2.496309314586995) internal successors, (7102), 2848 states have internal predecessors, (7102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 7102 transitions. [2021-07-13 23:52:32,257 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 7102 transitions. Word has length 82 [2021-07-13 23:52:32,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:32,257 INFO L482 AbstractCegarLoop]: Abstraction has 2849 states and 7102 transitions. [2021-07-13 23:52:32,258 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) [2021-07-13 23:52:32,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 7102 transitions. [2021-07-13 23:52:32,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:32,259 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:32,259 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:32,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-13 23:52:32,260 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:32,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:32,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1179840444, now seen corresponding path program 4 times [2021-07-13 23:52:32,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:32,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285240081] [2021-07-13 23:52:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:32,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:32,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:32,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:32,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:32,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:32,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:32,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-13 23:52:32,414 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.7 percent of original size [2021-07-13 23:52:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-13 23:52:32,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:52:32,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-07-13 23:52:32,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-07-13 23:52:32,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-13 23:52:32,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-13 23:52:32,582 INFO L142 QuantifierPusher]: treesize reduction 21, result has 70.0 percent of original size [2021-07-13 23:52:32,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-13 23:52:32,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-13 23:52:32,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:32,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-13 23:52:32,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:32,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:32,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-07-13 23:52:32,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:32,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:32,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:32,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:32,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:32,958 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:32,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:33,008 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:33,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:33,066 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:33,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:33,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:33,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:33,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:33,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285240081] [2021-07-13 23:52:33,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285240081] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:33,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:33,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 23:52:33,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992968806] [2021-07-13 23:52:33,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 23:52:33,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:33,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 23:52:33,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-07-13 23:52:33,131 INFO L87 Difference]: Start difference. First operand 2849 states and 7102 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) [2021-07-13 23:52:34,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:34,021 INFO L93 Difference]: Finished difference Result 3119 states and 7590 transitions. [2021-07-13 23:52:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 23:52:34,022 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 [2021-07-13 23:52:34,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:34,026 INFO L225 Difference]: With dead ends: 3119 [2021-07-13 23:52:34,027 INFO L226 Difference]: Without dead ends: 2820 [2021-07-13 23:52:34,027 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1202.4ms TimeCoverageRelationStatistics Valid=150, Invalid=1256, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 23:52:34,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-07-13 23:52:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2820. [2021-07-13 23:52:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2816 states have (on average 2.508877840909091) internal successors, (7065), 2819 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 7065 transitions. [2021-07-13 23:52:34,059 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 7065 transitions. Word has length 82 [2021-07-13 23:52:34,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:34,059 INFO L482 AbstractCegarLoop]: Abstraction has 2820 states and 7065 transitions. [2021-07-13 23:52:34,059 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) [2021-07-13 23:52:34,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 7065 transitions. [2021-07-13 23:52:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 23:52:34,061 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:52:34,061 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:52:34,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-13 23:52:34,061 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:52:34,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:52:34,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1725890354, now seen corresponding path program 5 times [2021-07-13 23:52:34,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:52:34,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724246366] [2021-07-13 23:52:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:52:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:52:34,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:34,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-13 23:52:34,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-13 23:52:34,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-13 23:52:34,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-13 23:52:34,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-13 23:52:34,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-07-13 23:52:34,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:34,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:34,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-13 23:52:34,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-13 23:52:34,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-13 23:52:34,241 INFO L142 QuantifierPusher]: treesize reduction 21, result has 59.6 percent of original size [2021-07-13 23:52:34,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:34,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-13 23:52:34,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:34,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-13 23:52:34,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-13 23:52:34,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:34,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-13 23:52:34,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-13 23:52:34,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-13 23:52:34,420 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:34,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:34,462 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-07-13 23:52:34,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-13 23:52:34,507 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-07-13 23:52:34,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-07-13 23:52:34,576 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-07-13 23:52:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-07-13 23:52:34,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:52:34,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:52:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:52:34,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:52:34,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724246366] [2021-07-13 23:52:34,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724246366] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:52:34,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:52:34,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 23:52:34,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755610938] [2021-07-13 23:52:34,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 23:52:34,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:52:34,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 23:52:34,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-07-13 23:52:34,652 INFO L87 Difference]: Start difference. First operand 2820 states and 7065 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) [2021-07-13 23:52:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:52:35,519 INFO L93 Difference]: Finished difference Result 337 states and 558 transitions. [2021-07-13 23:52:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:52:35,520 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 [2021-07-13 23:52:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:52:35,520 INFO L225 Difference]: With dead ends: 337 [2021-07-13 23:52:35,520 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 23:52:35,520 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 906.0ms TimeCoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 23:52:35,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 23:52:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 23:52:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:52:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 23:52:35,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2021-07-13 23:52:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:52:35,521 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 23:52:35,521 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) [2021-07-13 23:52:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 23:52:35,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 23:52:35,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-13 23:52:35,522 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-13 23:52:35,523 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-13 23:52:35,524 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 23:52:35,524 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 23:52:35,524 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 23:52:35,524 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 23:52:35,524 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 23:52:35,524 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 23:52:35,524 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 23:52:35,524 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread0Thread1of1ForFork4========