/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:17:54,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:17:54,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:17:54,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 18:17:54,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 18:17:54,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 18:17:54,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 18:17:54,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 18:17:54,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 18:17:54,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 18:17:54,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 18:17:54,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 18:17:54,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 18:17:54,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 18:17:54,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 18:17:54,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 18:17:54,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 18:17:54,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 18:17:54,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 18:17:54,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 18:17:54,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 18:17:54,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 18:17:54,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 18:17:54,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 18:17:54,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-13 18:17:54,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:17:54,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:17:54,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:17:54,467 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:17:54,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:17:54,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:17:54,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:17:54,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:17:54,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:17:54,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:17:54,517 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:17:54,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:17:54,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:17:54,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:17:54,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:17:54,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:17:54,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:17:54,519 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:17:54,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:17:54,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:17:54,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:17:54,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:17:54,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:17:54,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:17:54,793 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:17:54,793 INFO L432 ainManager$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 18:17:54,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5667b09/2cbf50f0eaa440cca7a2b469efe8185a/FLAG9434020b4 [2021-07-13 18:17:55,322 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:17:55,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-07-13 18:17:55,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5667b09/2cbf50f0eaa440cca7a2b469efe8185a/FLAG9434020b4 [2021-07-13 18:17:55,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5667b09/2cbf50f0eaa440cca7a2b469efe8185a [2021-07-13 18:17:55,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:17:55,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:17:55,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:17:55,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:17:55,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:17:55,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:55" (1/1) ... [2021-07-13 18:17:55,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39837ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:55, skipping insertion in model container [2021-07-13 18:17:55,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:55" (1/1) ... [2021-07-13 18:17:55,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:17:55,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:17:55,810 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:17:55,950 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 18:17:55,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:17:55,963 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:17:55,972 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:17:55,982 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 18:17:55,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:17:56,029 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:17:56,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56 WrapperNode [2021-07-13 18:17:56,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:17:56,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:17:56,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:17:56,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:17:56,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:17:56,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:17:56,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:17:56,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:17:56,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (1/1) ... [2021-07-13 18:17:56,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:17:56,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:17:56,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:17:56,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:17:56,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (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 18:17:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:17:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:17:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:17:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-07-13 18:17:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 18:17:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 18:17:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-13 18:17:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:17:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:17:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:17:56,138 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 18:17:56,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:17:56,397 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-13 18:17:56,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:56 BoogieIcfgContainer [2021-07-13 18:17:56,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:17:56,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:17:56,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:17:56,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:17:56,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:17:55" (1/3) ... [2021-07-13 18:17:56,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9ecde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:56, skipping insertion in model container [2021-07-13 18:17:56,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:56" (2/3) ... [2021-07-13 18:17:56,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9ecde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:56, skipping insertion in model container [2021-07-13 18:17:56,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:56" (3/3) ... [2021-07-13 18:17:56,403 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2021-07-13 18:17:56,407 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:17:56,407 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:17:56,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:17:56,408 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:17:56,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,440 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,440 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,440 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,441 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,442 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,443 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,444 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,445 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,446 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,446 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,446 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,446 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,446 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,446 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,447 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,448 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,449 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,450 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,451 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,452 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,453 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,457 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,458 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,459 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,460 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,461 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,462 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,463 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,464 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,465 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,465 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,466 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,466 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,466 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,467 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,470 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,470 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,470 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,470 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,471 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,472 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,472 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,472 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,473 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,473 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,473 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,473 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,473 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,473 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,474 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,474 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,475 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,476 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,477 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,477 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,477 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,478 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,478 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,478 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,478 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,479 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,479 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,480 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,480 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,481 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,481 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,481 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,481 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,482 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,482 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,482 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,482 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,484 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,484 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,484 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,484 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,485 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,485 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,485 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,485 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:56,586 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-07-13 18:17:56,601 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-13 18:17:56,613 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:17:56,614 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:17:56,614 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:17:56,614 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:17:56,614 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:17:56,614 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:17:56,614 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:17:56,614 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:17:56,624 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-07-13 18:18:00,597 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88725 states, 88720 states have (on average 4.309422903516682) internal successors, (382332), 88724 states have internal predecessors, (382332), 0 states have call successors, (0), 0 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 18:18:00,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 88725 states, 88720 states have (on average 4.309422903516682) internal successors, (382332), 88724 states have internal predecessors, (382332), 0 states have call successors, (0), 0 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 18:18:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-07-13 18:18:00,748 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:00,748 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 18:18:00,749 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:00,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1335156933, now seen corresponding path program 1 times [2021-07-13 18:18:00,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:00,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189052611] [2021-07-13 18:18:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:00,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:00,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189052611] [2021-07-13 18:18:00,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189052611] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:00,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:00,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:18:00,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085700145] [2021-07-13 18:18:00,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:18:00,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:00,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:18:00,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:18:01,081 INFO L87 Difference]: Start difference. First operand has 88725 states, 88720 states have (on average 4.309422903516682) internal successors, (382332), 88724 states have internal predecessors, (382332), 0 states have call successors, (0), 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 18:18:03,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:03,096 INFO L93 Difference]: Finished difference Result 125125 states and 525765 transitions. [2021-07-13 18:18:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:18:03,102 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 18:18:03,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:03,548 INFO L225 Difference]: With dead ends: 125125 [2021-07-13 18:18:03,548 INFO L226 Difference]: Without dead ends: 58395 [2021-07-13 18:18:03,549 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:18:03,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58395 states. [2021-07-13 18:18:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58395 to 58395. [2021-07-13 18:18:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58395 states, 58392 states have (on average 4.310265104808878) internal successors, (251685), 58394 states have internal predecessors, (251685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58395 states to 58395 states and 251685 transitions. [2021-07-13 18:18:06,417 INFO L78 Accepts]: Start accepts. Automaton has 58395 states and 251685 transitions. Word has length 43 [2021-07-13 18:18:06,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:06,423 INFO L482 AbstractCegarLoop]: Abstraction has 58395 states and 251685 transitions. [2021-07-13 18:18:06,423 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 18:18:06,423 INFO L276 IsEmpty]: Start isEmpty. Operand 58395 states and 251685 transitions. [2021-07-13 18:18:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 18:18:06,430 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:06,430 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 18:18:06,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:18:06,431 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:06,432 INFO L82 PathProgramCache]: Analyzing trace with hash -798010152, now seen corresponding path program 1 times [2021-07-13 18:18:06,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:06,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928346002] [2021-07-13 18:18:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:06,825 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 18:18:06,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:06,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928346002] [2021-07-13 18:18:06,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928346002] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:06,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:06,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:18:06,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131326792] [2021-07-13 18:18:06,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:18:06,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:18:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:18:06,830 INFO L87 Difference]: Start difference. First operand 58395 states and 251685 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:07,883 INFO L93 Difference]: Finished difference Result 66911 states and 291720 transitions. [2021-07-13 18:18:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:18:07,883 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 18:18:07,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:08,578 INFO L225 Difference]: With dead ends: 66911 [2021-07-13 18:18:08,579 INFO L226 Difference]: Without dead ends: 66911 [2021-07-13 18:18:08,580 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 227.5ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:18:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66911 states. [2021-07-13 18:18:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66911 to 58422. [2021-07-13 18:18:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58422 states, 58419 states have (on average 4.309009055273113) internal successors, (251728), 58421 states have internal predecessors, (251728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:11,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58422 states to 58422 states and 251728 transitions. [2021-07-13 18:18:11,353 INFO L78 Accepts]: Start accepts. Automaton has 58422 states and 251728 transitions. Word has length 45 [2021-07-13 18:18:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:11,353 INFO L482 AbstractCegarLoop]: Abstraction has 58422 states and 251728 transitions. [2021-07-13 18:18:11,353 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 18:18:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 58422 states and 251728 transitions. [2021-07-13 18:18:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 18:18:11,354 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:11,355 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 18:18:11,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:18:11,355 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash -913072364, now seen corresponding path program 2 times [2021-07-13 18:18:11,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:11,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264225968] [2021-07-13 18:18:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:11,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:11,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264225968] [2021-07-13 18:18:11,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264225968] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:11,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:11,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:18:11,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706680912] [2021-07-13 18:18:11,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:18:11,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:11,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:18:11,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:18:11,566 INFO L87 Difference]: Start difference. First operand 58422 states and 251728 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:12,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:12,598 INFO L93 Difference]: Finished difference Result 66936 states and 291761 transitions. [2021-07-13 18:18:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 18:18:12,599 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 18:18:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:13,331 INFO L225 Difference]: With dead ends: 66936 [2021-07-13 18:18:13,331 INFO L226 Difference]: Without dead ends: 66936 [2021-07-13 18:18:13,332 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 219.2ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:18:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66936 states. [2021-07-13 18:18:15,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66936 to 58420. [2021-07-13 18:18:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-07-13 18:18:16,355 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-07-13 18:18:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:16,355 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-07-13 18:18:16,355 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 18:18:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-07-13 18:18:16,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 18:18:16,356 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:16,356 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 18:18:16,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:18:16,357 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash -254084526, now seen corresponding path program 3 times [2021-07-13 18:18:16,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:16,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222995782] [2021-07-13 18:18:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:16,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:16,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222995782] [2021-07-13 18:18:16,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222995782] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:16,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:16,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:18:16,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428850194] [2021-07-13 18:18:16,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:18:16,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:16,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:18:16,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:18:16,711 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:18,256 INFO L93 Difference]: Finished difference Result 66933 states and 291758 transitions. [2021-07-13 18:18:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:18:18,256 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 18:18:18,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:18,877 INFO L225 Difference]: With dead ends: 66933 [2021-07-13 18:18:18,877 INFO L226 Difference]: Without dead ends: 66933 [2021-07-13 18:18:18,878 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 400.3ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:18:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66933 states. [2021-07-13 18:18:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66933 to 58420. [2021-07-13 18:18:20,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:21,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-07-13 18:18:21,501 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-07-13 18:18:21,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:21,502 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-07-13 18:18:21,502 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 18:18:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-07-13 18:18:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 18:18:21,508 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:21,508 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 18:18:21,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:18:21,510 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:21,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1738933938, now seen corresponding path program 4 times [2021-07-13 18:18:21,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:21,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391382145] [2021-07-13 18:18:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:21,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:21,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391382145] [2021-07-13 18:18:21,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391382145] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:21,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:21,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:18:21,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151031142] [2021-07-13 18:18:21,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:18:21,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:21,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:18:21,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:18:21,873 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:23,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:23,572 INFO L93 Difference]: Finished difference Result 66894 states and 291684 transitions. [2021-07-13 18:18:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:18:23,589 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 18:18:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:23,940 INFO L225 Difference]: With dead ends: 66894 [2021-07-13 18:18:23,940 INFO L226 Difference]: Without dead ends: 66894 [2021-07-13 18:18:23,940 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 431.0ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:18:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66894 states. [2021-07-13 18:18:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66894 to 58347. [2021-07-13 18:18:26,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58347 states, 58345 states have (on average 4.312228982774873) internal successors, (251597), 58346 states have internal predecessors, (251597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58347 states to 58347 states and 251597 transitions. [2021-07-13 18:18:26,528 INFO L78 Accepts]: Start accepts. Automaton has 58347 states and 251597 transitions. Word has length 45 [2021-07-13 18:18:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:26,529 INFO L482 AbstractCegarLoop]: Abstraction has 58347 states and 251597 transitions. [2021-07-13 18:18:26,529 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 18:18:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 58347 states and 251597 transitions. [2021-07-13 18:18:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-13 18:18:26,534 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:26,535 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 18:18:26,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:18:26,535 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:26,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:26,536 INFO L82 PathProgramCache]: Analyzing trace with hash -849465654, now seen corresponding path program 1 times [2021-07-13 18:18:26,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:26,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112571927] [2021-07-13 18:18:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:26,651 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 18:18:26,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:26,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112571927] [2021-07-13 18:18:26,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112571927] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:26,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:26,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:18:26,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126743266] [2021-07-13 18:18:26,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:18:26,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:26,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:18:26,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:18:26,653 INFO L87 Difference]: Start difference. First operand 58347 states and 251597 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:28,105 INFO L93 Difference]: Finished difference Result 106077 states and 449265 transitions. [2021-07-13 18:18:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:18:28,105 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 18:18:28,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:28,525 INFO L225 Difference]: With dead ends: 106077 [2021-07-13 18:18:28,526 INFO L226 Difference]: Without dead ends: 80559 [2021-07-13 18:18:28,526 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:18:28,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80559 states. [2021-07-13 18:18:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80559 to 60189. [2021-07-13 18:18:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60189 states, 60187 states have (on average 4.185073188562314) internal successors, (251887), 60188 states have internal predecessors, (251887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60189 states to 60189 states and 251887 transitions. [2021-07-13 18:18:31,290 INFO L78 Accepts]: Start accepts. Automaton has 60189 states and 251887 transitions. Word has length 58 [2021-07-13 18:18:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:31,290 INFO L482 AbstractCegarLoop]: Abstraction has 60189 states and 251887 transitions. [2021-07-13 18:18:31,290 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 18:18:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 60189 states and 251887 transitions. [2021-07-13 18:18:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-13 18:18:31,310 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:31,310 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 18:18:31,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:18:31,310 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:31,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1887709297, now seen corresponding path program 1 times [2021-07-13 18:18:31,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:31,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483075499] [2021-07-13 18:18:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:31,509 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 18:18:31,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:31,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483075499] [2021-07-13 18:18:31,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483075499] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:31,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:31,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 18:18:31,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753289799] [2021-07-13 18:18:31,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 18:18:31,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:31,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 18:18:31,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-13 18:18:31,511 INFO L87 Difference]: Start difference. First operand 60189 states and 251887 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:32,729 INFO L93 Difference]: Finished difference Result 69158 states and 289783 transitions. [2021-07-13 18:18:32,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 18:18:32,730 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 18:18:32,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:33,224 INFO L225 Difference]: With dead ends: 69158 [2021-07-13 18:18:33,224 INFO L226 Difference]: Without dead ends: 69086 [2021-07-13 18:18:33,227 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.6ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:18:33,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69086 states. [2021-07-13 18:18:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69086 to 64538. [2021-07-13 18:18:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64538 states, 64536 states have (on average 4.210068798809966) internal successors, (271701), 64537 states have internal predecessors, (271701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 271701 transitions. [2021-07-13 18:18:35,994 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 271701 transitions. Word has length 63 [2021-07-13 18:18:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:35,994 INFO L482 AbstractCegarLoop]: Abstraction has 64538 states and 271701 transitions. [2021-07-13 18:18:35,994 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 18:18:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 271701 transitions. [2021-07-13 18:18:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-13 18:18:36,013 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:36,013 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 18:18:36,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:18:36,013 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:36,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:36,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1016289523, now seen corresponding path program 2 times [2021-07-13 18:18:36,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:36,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977397201] [2021-07-13 18:18:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:36,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:36,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977397201] [2021-07-13 18:18:36,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977397201] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:36,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:36,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 18:18:36,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707435518] [2021-07-13 18:18:36,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 18:18:36,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:36,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 18:18:36,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-07-13 18:18:36,096 INFO L87 Difference]: Start difference. First operand 64538 states and 271701 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:37,207 INFO L93 Difference]: Finished difference Result 88074 states and 363236 transitions. [2021-07-13 18:18:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:18:37,207 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 18:18:37,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:37,900 INFO L225 Difference]: With dead ends: 88074 [2021-07-13 18:18:37,900 INFO L226 Difference]: Without dead ends: 85032 [2021-07-13 18:18:37,900 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 75.5ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-07-13 18:18:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85032 states. [2021-07-13 18:18:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85032 to 64274. [2021-07-13 18:18:40,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64274 states, 64272 states have (on average 4.214385735623599) internal successors, (270867), 64273 states have internal predecessors, (270867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64274 states to 64274 states and 270867 transitions. [2021-07-13 18:18:40,661 INFO L78 Accepts]: Start accepts. Automaton has 64274 states and 270867 transitions. Word has length 63 [2021-07-13 18:18:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:40,666 INFO L482 AbstractCegarLoop]: Abstraction has 64274 states and 270867 transitions. [2021-07-13 18:18:40,666 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 18:18:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 64274 states and 270867 transitions. [2021-07-13 18:18:40,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-13 18:18:40,689 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:40,704 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 18:18:40,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:18:40,705 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:40,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:40,705 INFO L82 PathProgramCache]: Analyzing trace with hash -856202696, now seen corresponding path program 1 times [2021-07-13 18:18:40,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:40,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909690958] [2021-07-13 18:18:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:40,777 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 18:18:40,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:40,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909690958] [2021-07-13 18:18:40,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909690958] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:40,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:40,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:18:40,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793758797] [2021-07-13 18:18:40,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:18:40,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:40,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:18:40,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:18:40,778 INFO L87 Difference]: Start difference. First operand 64274 states and 270867 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:41,890 INFO L93 Difference]: Finished difference Result 105424 states and 431849 transitions. [2021-07-13 18:18:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:18:41,891 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 18:18:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:42,510 INFO L225 Difference]: With dead ends: 105424 [2021-07-13 18:18:42,510 INFO L226 Difference]: Without dead ends: 74071 [2021-07-13 18:18:42,511 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:18:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74071 states. [2021-07-13 18:18:44,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74071 to 66493. [2021-07-13 18:18:44,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66493 states, 66492 states have (on average 4.090507128677134) internal successors, (271986), 66492 states have internal predecessors, (271986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66493 states to 66493 states and 271986 transitions. [2021-07-13 18:18:45,438 INFO L78 Accepts]: Start accepts. Automaton has 66493 states and 271986 transitions. Word has length 64 [2021-07-13 18:18:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:45,439 INFO L482 AbstractCegarLoop]: Abstraction has 66493 states and 271986 transitions. [2021-07-13 18:18:45,439 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 18:18:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 66493 states and 271986 transitions. [2021-07-13 18:18:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:18:45,481 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:45,481 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 18:18:45,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:18:45,481 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash 692312305, now seen corresponding path program 1 times [2021-07-13 18:18:45,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:45,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198147922] [2021-07-13 18:18:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:45,746 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 18:18:45,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:45,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198147922] [2021-07-13 18:18:45,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198147922] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:45,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:45,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-13 18:18:45,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575220328] [2021-07-13 18:18:45,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 18:18:45,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:45,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 18:18:45,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-13 18:18:45,747 INFO L87 Difference]: Start difference. First operand 66493 states and 271986 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:46,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:46,761 INFO L93 Difference]: Finished difference Result 69911 states and 283080 transitions. [2021-07-13 18:18:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:18:46,762 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 18:18:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:47,074 INFO L225 Difference]: With dead ends: 69911 [2021-07-13 18:18:47,074 INFO L226 Difference]: Without dead ends: 68849 [2021-07-13 18:18:47,074 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 234.0ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:18:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68849 states. [2021-07-13 18:18:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68849 to 66928. [2021-07-13 18:18:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66928 states, 66927 states have (on average 4.075948421414377) internal successors, (272791), 66927 states have internal predecessors, (272791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66928 states to 66928 states and 272791 transitions. [2021-07-13 18:18:49,746 INFO L78 Accepts]: Start accepts. Automaton has 66928 states and 272791 transitions. Word has length 66 [2021-07-13 18:18:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:49,747 INFO L482 AbstractCegarLoop]: Abstraction has 66928 states and 272791 transitions. [2021-07-13 18:18:49,747 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 18:18:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 66928 states and 272791 transitions. [2021-07-13 18:18:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:18:49,791 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:49,791 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 18:18:49,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 18:18:49,791 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:49,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:49,792 INFO L82 PathProgramCache]: Analyzing trace with hash -991837905, now seen corresponding path program 2 times [2021-07-13 18:18:49,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:49,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044119985] [2021-07-13 18:18:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:50,054 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 18:18:50,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:50,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044119985] [2021-07-13 18:18:50,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044119985] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:50,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:50,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 18:18:50,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469110093] [2021-07-13 18:18:50,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 18:18:50,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:50,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 18:18:50,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:18:50,060 INFO L87 Difference]: Start difference. First operand 66928 states and 272791 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:51,659 INFO L93 Difference]: Finished difference Result 75410 states and 306936 transitions. [2021-07-13 18:18:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 18:18:51,660 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-13 18:18:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:52,282 INFO L225 Difference]: With dead ends: 75410 [2021-07-13 18:18:52,283 INFO L226 Difference]: Without dead ends: 74906 [2021-07-13 18:18:52,283 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 414.2ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:18:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74906 states. [2021-07-13 18:18:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74906 to 70681. [2021-07-13 18:18:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:54,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-07-13 18:18:54,955 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-07-13 18:18:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:54,955 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-07-13 18:18:54,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:54,955 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-07-13 18:18:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:18:55,007 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:55,007 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 18:18:55,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 18:18:55,007 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:55,007 INFO L82 PathProgramCache]: Analyzing trace with hash 229445895, now seen corresponding path program 3 times [2021-07-13 18:18:55,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:55,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399369007] [2021-07-13 18:18:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:55,336 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 18:18:55,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:55,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399369007] [2021-07-13 18:18:55,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399369007] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:55,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:55,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:18:55,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308458250] [2021-07-13 18:18:55,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:18:55,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:55,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:18:55,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:18:55,337 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:18:56,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:56,703 INFO L93 Difference]: Finished difference Result 79159 states and 323521 transitions. [2021-07-13 18:18:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:18:56,704 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 18:18:56,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:57,461 INFO L225 Difference]: With dead ends: 79159 [2021-07-13 18:18:57,461 INFO L226 Difference]: Without dead ends: 78655 [2021-07-13 18:18:57,462 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 409.4ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:18:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78655 states. [2021-07-13 18:18:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78655 to 70673. [2021-07-13 18:18:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70673 states, 70672 states have (on average 4.094507018338239) internal successors, (289367), 70672 states have internal predecessors, (289367), 0 states have call successors, (0), 0 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 18:19:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70673 states to 70673 states and 289367 transitions. [2021-07-13 18:19:00,087 INFO L78 Accepts]: Start accepts. Automaton has 70673 states and 289367 transitions. Word has length 66 [2021-07-13 18:19:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:00,087 INFO L482 AbstractCegarLoop]: Abstraction has 70673 states and 289367 transitions. [2021-07-13 18:19:00,087 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 18:19:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 70673 states and 289367 transitions. [2021-07-13 18:19:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:19:00,131 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:00,131 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 18:19:00,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 18:19:00,131 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:00,132 INFO L82 PathProgramCache]: Analyzing trace with hash -606040241, now seen corresponding path program 4 times [2021-07-13 18:19:00,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:00,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624651501] [2021-07-13 18:19:00,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:00,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:00,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624651501] [2021-07-13 18:19:00,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624651501] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:00,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:00,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:19:00,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370635646] [2021-07-13 18:19:00,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:19:00,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:00,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:19:00,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:19:00,577 INFO L87 Difference]: Start difference. First operand 70673 states and 289367 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 18:19:02,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:02,462 INFO L93 Difference]: Finished difference Result 79131 states and 323463 transitions. [2021-07-13 18:19:02,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:19:02,462 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 18:19:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:02,818 INFO L225 Difference]: With dead ends: 79131 [2021-07-13 18:19:02,819 INFO L226 Difference]: Without dead ends: 78627 [2021-07-13 18:19:02,819 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 558.5ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:19:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78627 states. [2021-07-13 18:19:04,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78627 to 70669. [2021-07-13 18:19:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70669 states, 70668 states have (on average 4.094625573102395) internal successors, (289359), 70668 states have internal predecessors, (289359), 0 states have call successors, (0), 0 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 18:19:05,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70669 states to 70669 states and 289359 transitions. [2021-07-13 18:19:05,609 INFO L78 Accepts]: Start accepts. Automaton has 70669 states and 289359 transitions. Word has length 66 [2021-07-13 18:19:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:05,609 INFO L482 AbstractCegarLoop]: Abstraction has 70669 states and 289359 transitions. [2021-07-13 18:19:05,609 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 18:19:05,609 INFO L276 IsEmpty]: Start isEmpty. Operand 70669 states and 289359 transitions. [2021-07-13 18:19:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:19:05,655 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:05,656 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 18:19:05,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 18:19:05,656 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:05,656 INFO L82 PathProgramCache]: Analyzing trace with hash 703438637, now seen corresponding path program 5 times [2021-07-13 18:19:05,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:05,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228220928] [2021-07-13 18:19:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:06,049 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 18:19:06,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:06,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228220928] [2021-07-13 18:19:06,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228220928] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:06,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:06,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:19:06,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834685408] [2021-07-13 18:19:06,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:19:06,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:06,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:19:06,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:19:06,050 INFO L87 Difference]: Start difference. First operand 70669 states and 289359 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 18:19:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:08,247 INFO L93 Difference]: Finished difference Result 84249 states and 345585 transitions. [2021-07-13 18:19:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:19:08,248 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 18:19:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:08,826 INFO L225 Difference]: With dead ends: 84249 [2021-07-13 18:19:08,826 INFO L226 Difference]: Without dead ends: 83745 [2021-07-13 18:19:08,826 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1155.6ms TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:19:09,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83745 states. [2021-07-13 18:19:11,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83745 to 70667. [2021-07-13 18:19:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70667 states, 70666 states have (on average 4.094684855517505) internal successors, (289355), 70666 states have internal predecessors, (289355), 0 states have call successors, (0), 0 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 18:19:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70667 states to 70667 states and 289355 transitions. [2021-07-13 18:19:11,713 INFO L78 Accepts]: Start accepts. Automaton has 70667 states and 289355 transitions. Word has length 66 [2021-07-13 18:19:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:11,714 INFO L482 AbstractCegarLoop]: Abstraction has 70667 states and 289355 transitions. [2021-07-13 18:19:11,714 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 18:19:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 70667 states and 289355 transitions. [2021-07-13 18:19:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:19:11,755 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:11,755 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 18:19:11,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 18:19:11,755 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:11,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:11,756 INFO L82 PathProgramCache]: Analyzing trace with hash -415123371, now seen corresponding path program 6 times [2021-07-13 18:19:11,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:11,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517563441] [2021-07-13 18:19:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:12,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:12,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517563441] [2021-07-13 18:19:12,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517563441] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:12,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:12,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:19:12,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029041552] [2021-07-13 18:19:12,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:19:12,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:12,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:19:12,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:19:12,457 INFO L87 Difference]: Start difference. First operand 70667 states and 289355 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 18:19:14,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:14,168 INFO L93 Difference]: Finished difference Result 78786 states and 322505 transitions. [2021-07-13 18:19:14,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:19:14,169 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 18:19:14,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:14,549 INFO L225 Difference]: With dead ends: 78786 [2021-07-13 18:19:14,549 INFO L226 Difference]: Without dead ends: 78282 [2021-07-13 18:19:14,551 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 987.7ms TimeCoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:19:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78282 states. [2021-07-13 18:19:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78282 to 70342. [2021-07-13 18:19:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70342 states, 70341 states have (on average 4.1005956696663395) internal successors, (288440), 70341 states have internal predecessors, (288440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70342 states to 70342 states and 288440 transitions. [2021-07-13 18:19:17,928 INFO L78 Accepts]: Start accepts. Automaton has 70342 states and 288440 transitions. Word has length 66 [2021-07-13 18:19:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:17,929 INFO L482 AbstractCegarLoop]: Abstraction has 70342 states and 288440 transitions. [2021-07-13 18:19:17,929 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 18:19:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 70342 states and 288440 transitions. [2021-07-13 18:19:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 18:19:17,992 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:17,992 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 18:19:17,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-13 18:19:17,993 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:17,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:17,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1094311497, now seen corresponding path program 1 times [2021-07-13 18:19:17,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:17,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529986726] [2021-07-13 18:19:17,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:18,214 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 18:19:18,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:18,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529986726] [2021-07-13 18:19:18,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529986726] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:18,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:18,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 18:19:18,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322708939] [2021-07-13 18:19:18,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 18:19:18,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:18,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 18:19:18,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:19:18,217 INFO L87 Difference]: Start difference. First operand 70342 states and 288440 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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 18:19:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:19,320 INFO L93 Difference]: Finished difference Result 77298 states and 315059 transitions. [2021-07-13 18:19:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 18:19:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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 18:19:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:19,607 INFO L225 Difference]: With dead ends: 77298 [2021-07-13 18:19:19,607 INFO L226 Difference]: Without dead ends: 76578 [2021-07-13 18:19:19,607 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 325.9ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:19:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76578 states. [2021-07-13 18:19:21,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76578 to 70314. [2021-07-13 18:19:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70314 states, 70313 states have (on average 4.10160283304652) internal successors, (288396), 70313 states have internal predecessors, (288396), 0 states have call successors, (0), 0 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 18:19:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70314 states to 70314 states and 288396 transitions. [2021-07-13 18:19:22,103 INFO L78 Accepts]: Start accepts. Automaton has 70314 states and 288396 transitions. Word has length 69 [2021-07-13 18:19:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:22,103 INFO L482 AbstractCegarLoop]: Abstraction has 70314 states and 288396 transitions. [2021-07-13 18:19:22,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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 18:19:22,104 INFO L276 IsEmpty]: Start isEmpty. Operand 70314 states and 288396 transitions. [2021-07-13 18:19:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 18:19:22,534 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:22,534 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 18:19:22,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-13 18:19:22,534 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:22,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1692032881, now seen corresponding path program 2 times [2021-07-13 18:19:22,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:22,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758510287] [2021-07-13 18:19:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:22,683 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 18:19:22,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:22,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758510287] [2021-07-13 18:19:22,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758510287] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:22,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:22,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:19:22,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195816905] [2021-07-13 18:19:22,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:19:22,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:22,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:19:22,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:19:22,685 INFO L87 Difference]: Start difference. First operand 70314 states and 288396 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 18:19:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:23,672 INFO L93 Difference]: Finished difference Result 85369 states and 345953 transitions. [2021-07-13 18:19:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:19:23,672 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 18:19:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:23,977 INFO L225 Difference]: With dead ends: 85369 [2021-07-13 18:19:23,978 INFO L226 Difference]: Without dead ends: 81191 [2021-07-13 18:19:23,978 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 135.9ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:19:24,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81191 states. [2021-07-13 18:19:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81191 to 69420. [2021-07-13 18:19:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69420 states, 69419 states have (on average 4.103343465045593) internal successors, (284850), 69419 states have internal predecessors, (284850), 0 states have call successors, (0), 0 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 18:19:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69420 states to 69420 states and 284850 transitions. [2021-07-13 18:19:26,911 INFO L78 Accepts]: Start accepts. Automaton has 69420 states and 284850 transitions. Word has length 69 [2021-07-13 18:19:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:26,911 INFO L482 AbstractCegarLoop]: Abstraction has 69420 states and 284850 transitions. [2021-07-13 18:19:26,911 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 18:19:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 69420 states and 284850 transitions. [2021-07-13 18:19:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-13 18:19:26,972 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:26,972 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 18:19:26,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-13 18:19:26,972 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:26,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:26,973 INFO L82 PathProgramCache]: Analyzing trace with hash -879290743, now seen corresponding path program 1 times [2021-07-13 18:19:26,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:26,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949080963] [2021-07-13 18:19:26,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:27,084 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 18:19:27,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:27,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949080963] [2021-07-13 18:19:27,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949080963] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:27,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:27,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:19:27,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707510911] [2021-07-13 18:19:27,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:19:27,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:27,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:19:27,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:19:27,085 INFO L87 Difference]: Start difference. First operand 69420 states and 284850 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 18:19:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:28,559 INFO L93 Difference]: Finished difference Result 83347 states and 337904 transitions. [2021-07-13 18:19:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 18:19:28,559 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 18:19:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:28,852 INFO L225 Difference]: With dead ends: 83347 [2021-07-13 18:19:28,852 INFO L226 Difference]: Without dead ends: 76082 [2021-07-13 18:19:28,854 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 182.1ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:19:29,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76082 states. [2021-07-13 18:19:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76082 to 67935. [2021-07-13 18:19:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67935 states, 67934 states have (on average 4.105970500780169) internal successors, (278935), 67934 states have internal predecessors, (278935), 0 states have call successors, (0), 0 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 18:19:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67935 states to 67935 states and 278935 transitions. [2021-07-13 18:19:31,183 INFO L78 Accepts]: Start accepts. Automaton has 67935 states and 278935 transitions. Word has length 69 [2021-07-13 18:19:31,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:31,183 INFO L482 AbstractCegarLoop]: Abstraction has 67935 states and 278935 transitions. [2021-07-13 18:19:31,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:31,183 INFO L276 IsEmpty]: Start isEmpty. Operand 67935 states and 278935 transitions. [2021-07-13 18:19:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-13 18:19:31,261 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:31,261 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 18:19:31,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 18:19:31,261 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash 344141304, now seen corresponding path program 1 times [2021-07-13 18:19:31,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:31,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953928884] [2021-07-13 18:19:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:32,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:32,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953928884] [2021-07-13 18:19:32,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953928884] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:32,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:32,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 18:19:32,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033601049] [2021-07-13 18:19:32,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 18:19:32,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:32,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 18:19:32,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:19:32,008 INFO L87 Difference]: Start difference. First operand 67935 states and 278935 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 18:19:32,596 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-07-13 18:19:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:34,331 INFO L93 Difference]: Finished difference Result 79316 states and 326988 transitions. [2021-07-13 18:19:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:19:34,332 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 18:19:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:34,940 INFO L225 Difference]: With dead ends: 79316 [2021-07-13 18:19:34,956 INFO L226 Difference]: Without dead ends: 78812 [2021-07-13 18:19:34,957 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1564.7ms TimeCoverageRelationStatistics Valid=211, Invalid=1429, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:19:35,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78812 states. [2021-07-13 18:19:36,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78812 to 66470. [2021-07-13 18:19:36,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66470 states, 66469 states have (on average 4.113075268170125) internal successors, (273392), 66469 states have internal predecessors, (273392), 0 states have call successors, (0), 0 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 18:19:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66470 states to 66470 states and 273392 transitions. [2021-07-13 18:19:37,472 INFO L78 Accepts]: Start accepts. Automaton has 66470 states and 273392 transitions. Word has length 71 [2021-07-13 18:19:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:37,472 INFO L482 AbstractCegarLoop]: Abstraction has 66470 states and 273392 transitions. [2021-07-13 18:19:37,472 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 18:19:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 66470 states and 273392 transitions. [2021-07-13 18:19:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:19:37,595 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:37,596 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 18:19:37,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 18:19:37,596 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:37,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:37,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1729508893, now seen corresponding path program 1 times [2021-07-13 18:19:37,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:37,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939526754] [2021-07-13 18:19:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:37,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:37,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939526754] [2021-07-13 18:19:37,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939526754] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:37,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:37,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:19:37,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997746023] [2021-07-13 18:19:37,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:19:37,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:37,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:19:37,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:19:37,803 INFO L87 Difference]: Start difference. First operand 66470 states and 273392 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 18:19:38,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:38,786 INFO L93 Difference]: Finished difference Result 71397 states and 290905 transitions. [2021-07-13 18:19:38,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 18:19:38,786 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 18:19:38,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:39,062 INFO L225 Difference]: With dead ends: 71397 [2021-07-13 18:19:39,062 INFO L226 Difference]: Without dead ends: 68955 [2021-07-13 18:19:39,062 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 229.0ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:19:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68955 states. [2021-07-13 18:19:40,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68955 to 67573. [2021-07-13 18:19:41,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67573 states, 67572 states have (on average 4.1057242644882495) internal successors, (277432), 67572 states have internal predecessors, (277432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67573 states to 67573 states and 277432 transitions. [2021-07-13 18:19:41,853 INFO L78 Accepts]: Start accepts. Automaton has 67573 states and 277432 transitions. Word has length 74 [2021-07-13 18:19:41,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:41,853 INFO L482 AbstractCegarLoop]: Abstraction has 67573 states and 277432 transitions. [2021-07-13 18:19:41,853 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 18:19:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 67573 states and 277432 transitions. [2021-07-13 18:19:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:19:41,958 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:41,958 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 18:19:41,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 18:19:41,958 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:41,959 INFO L82 PathProgramCache]: Analyzing trace with hash 48169051, now seen corresponding path program 2 times [2021-07-13 18:19:41,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:41,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78903339] [2021-07-13 18:19:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:42,212 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 18:19:42,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:42,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78903339] [2021-07-13 18:19:42,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78903339] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:42,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:42,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:19:42,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194469709] [2021-07-13 18:19:42,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:19:42,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:42,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:19:42,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:19:42,213 INFO L87 Difference]: Start difference. First operand 67573 states and 277432 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 18:19:43,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:43,691 INFO L93 Difference]: Finished difference Result 74855 states and 304390 transitions. [2021-07-13 18:19:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:19:43,692 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 18:19:43,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:43,981 INFO L225 Difference]: With dead ends: 74855 [2021-07-13 18:19:43,982 INFO L226 Difference]: Without dead ends: 72413 [2021-07-13 18:19:43,982 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 368.9ms TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-07-13 18:19:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72413 states. [2021-07-13 18:19:45,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72413 to 67598. [2021-07-13 18:19:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67598 states, 67597 states have (on average 4.107001790020267) internal successors, (277621), 67597 states have internal predecessors, (277621), 0 states have call successors, (0), 0 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 18:19:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67598 states to 67598 states and 277621 transitions. [2021-07-13 18:19:46,413 INFO L78 Accepts]: Start accepts. Automaton has 67598 states and 277621 transitions. Word has length 74 [2021-07-13 18:19:46,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:46,413 INFO L482 AbstractCegarLoop]: Abstraction has 67598 states and 277621 transitions. [2021-07-13 18:19:46,413 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 18:19:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 67598 states and 277621 transitions. [2021-07-13 18:19:46,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:19:46,520 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:46,520 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 18:19:46,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 18:19:46,520 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:46,520 INFO L82 PathProgramCache]: Analyzing trace with hash -254694524, now seen corresponding path program 1 times [2021-07-13 18:19:46,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:46,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068243482] [2021-07-13 18:19:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:46,725 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 18:19:46,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:46,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068243482] [2021-07-13 18:19:46,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068243482] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:46,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:46,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:19:46,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821846938] [2021-07-13 18:19:46,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:19:46,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:46,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:19:46,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:19:46,727 INFO L87 Difference]: Start difference. First operand 67598 states and 277621 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 18:19:48,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:48,018 INFO L93 Difference]: Finished difference Result 74825 states and 304219 transitions. [2021-07-13 18:19:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:19:48,019 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 18:19:48,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:48,699 INFO L225 Difference]: With dead ends: 74825 [2021-07-13 18:19:48,699 INFO L226 Difference]: Without dead ends: 72329 [2021-07-13 18:19:48,700 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 383.4ms TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2021-07-13 18:19:48,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72329 states. [2021-07-13 18:19:50,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72329 to 67541. [2021-07-13 18:19:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67541 states, 67540 states have (on average 4.1069588392063965) internal successors, (277384), 67540 states have internal predecessors, (277384), 0 states have call successors, (0), 0 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 18:19:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67541 states to 67541 states and 277384 transitions. [2021-07-13 18:19:51,366 INFO L78 Accepts]: Start accepts. Automaton has 67541 states and 277384 transitions. Word has length 74 [2021-07-13 18:19:51,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:51,367 INFO L482 AbstractCegarLoop]: Abstraction has 67541 states and 277384 transitions. [2021-07-13 18:19:51,367 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 18:19:51,367 INFO L276 IsEmpty]: Start isEmpty. Operand 67541 states and 277384 transitions. [2021-07-13 18:19:51,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:19:51,467 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:51,468 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 18:19:51,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-13 18:19:51,468 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:51,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:51,469 INFO L82 PathProgramCache]: Analyzing trace with hash -2002192333, now seen corresponding path program 3 times [2021-07-13 18:19:51,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:51,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873421622] [2021-07-13 18:19:51,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:52,314 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 18:19:52,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:52,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873421622] [2021-07-13 18:19:52,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873421622] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:52,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:52,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:19:52,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469442932] [2021-07-13 18:19:52,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:19:52,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:52,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:19:52,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:19:52,315 INFO L87 Difference]: Start difference. First operand 67541 states and 277384 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 18:19:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:54,861 INFO L93 Difference]: Finished difference Result 77310 states and 314245 transitions. [2021-07-13 18:19:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:19:54,862 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 18:19:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:55,149 INFO L225 Difference]: With dead ends: 77310 [2021-07-13 18:19:55,149 INFO L226 Difference]: Without dead ends: 74868 [2021-07-13 18:19:55,149 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1947.9ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:19:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74868 states. [2021-07-13 18:19:57,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74868 to 70054. [2021-07-13 18:19:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70054 states, 70053 states have (on average 4.103707193125206) internal successors, (287477), 70053 states have internal predecessors, (287477), 0 states have call successors, (0), 0 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 18:19:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70054 states to 70054 states and 287477 transitions. [2021-07-13 18:19:58,076 INFO L78 Accepts]: Start accepts. Automaton has 70054 states and 287477 transitions. Word has length 74 [2021-07-13 18:19:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:58,076 INFO L482 AbstractCegarLoop]: Abstraction has 70054 states and 287477 transitions. [2021-07-13 18:19:58,076 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 18:19:58,076 INFO L276 IsEmpty]: Start isEmpty. Operand 70054 states and 287477 transitions. [2021-07-13 18:19:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:19:58,272 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:58,272 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 18:19:58,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-13 18:19:58,272 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:58,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:58,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1094297504, now seen corresponding path program 2 times [2021-07-13 18:19:58,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:58,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062899640] [2021-07-13 18:19:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:58,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:58,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062899640] [2021-07-13 18:19:58,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062899640] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:58,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:58,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:19:58,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135142965] [2021-07-13 18:19:58,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:19:58,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:58,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:19:58,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:19:58,515 INFO L87 Difference]: Start difference. First operand 70054 states and 287477 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 18:20:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:00,081 INFO L93 Difference]: Finished difference Result 80722 states and 328282 transitions. [2021-07-13 18:20:00,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:20:00,082 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 18:20:00,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:01,064 INFO L225 Difference]: With dead ends: 80722 [2021-07-13 18:20:01,065 INFO L226 Difference]: Without dead ends: 78226 [2021-07-13 18:20:01,065 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 497.8ms TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2021-07-13 18:20:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78226 states. [2021-07-13 18:20:03,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78226 to 69945. [2021-07-13 18:20:03,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69945 states, 69944 states have (on average 4.115235045179) internal successors, (287836), 69944 states have internal predecessors, (287836), 0 states have call successors, (0), 0 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 18:20:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69945 states to 69945 states and 287836 transitions. [2021-07-13 18:20:03,953 INFO L78 Accepts]: Start accepts. Automaton has 69945 states and 287836 transitions. Word has length 74 [2021-07-13 18:20:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:03,953 INFO L482 AbstractCegarLoop]: Abstraction has 69945 states and 287836 transitions. [2021-07-13 18:20:03,953 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 18:20:03,954 INFO L276 IsEmpty]: Start isEmpty. Operand 69945 states and 287836 transitions. [2021-07-13 18:20:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:04,079 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:04,079 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 18:20:04,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-13 18:20:04,079 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:04,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:04,079 INFO L82 PathProgramCache]: Analyzing trace with hash -498450916, now seen corresponding path program 3 times [2021-07-13 18:20:04,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:04,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043709337] [2021-07-13 18:20:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:04,455 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 18:20:04,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:04,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043709337] [2021-07-13 18:20:04,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043709337] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:04,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:04,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:20:04,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515868556] [2021-07-13 18:20:04,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:20:04,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:04,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:20:04,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:20:04,456 INFO L87 Difference]: Start difference. First operand 69945 states and 287836 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 18:20:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:06,245 INFO L93 Difference]: Finished difference Result 83111 states and 339735 transitions. [2021-07-13 18:20:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:20:06,245 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 18:20:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:06,639 INFO L225 Difference]: With dead ends: 83111 [2021-07-13 18:20:06,639 INFO L226 Difference]: Without dead ends: 82391 [2021-07-13 18:20:06,639 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 866.7ms TimeCoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:20:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82391 states. [2021-07-13 18:20:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82391 to 69040. [2021-07-13 18:20:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69040 states, 69039 states have (on average 4.117049783455728) internal successors, (284237), 69039 states have internal predecessors, (284237), 0 states have call successors, (0), 0 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 18:20:09,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69040 states to 69040 states and 284237 transitions. [2021-07-13 18:20:09,665 INFO L78 Accepts]: Start accepts. Automaton has 69040 states and 284237 transitions. Word has length 74 [2021-07-13 18:20:09,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:09,665 INFO L482 AbstractCegarLoop]: Abstraction has 69040 states and 284237 transitions. [2021-07-13 18:20:09,665 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 18:20:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 69040 states and 284237 transitions. [2021-07-13 18:20:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:09,767 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:09,768 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 18:20:09,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-13 18:20:09,768 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:09,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1892190614, now seen corresponding path program 4 times [2021-07-13 18:20:09,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:09,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926509407] [2021-07-13 18:20:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:10,432 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2021-07-13 18:20:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:10,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:10,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926509407] [2021-07-13 18:20:10,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926509407] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:10,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:10,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:20:10,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071779208] [2021-07-13 18:20:10,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:20:10,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:10,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:20:10,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:20:10,708 INFO L87 Difference]: Start difference. First operand 69040 states and 284237 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 18:20:12,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:12,332 INFO L93 Difference]: Finished difference Result 75975 states and 309710 transitions. [2021-07-13 18:20:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:20:12,332 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 18:20:12,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:13,155 INFO L225 Difference]: With dead ends: 75975 [2021-07-13 18:20:13,155 INFO L226 Difference]: Without dead ends: 75255 [2021-07-13 18:20:13,156 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1279.1ms TimeCoverageRelationStatistics Valid=205, Invalid=1201, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:20:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75255 states. [2021-07-13 18:20:15,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75255 to 64122. [2021-07-13 18:20:15,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64122 states, 64121 states have (on average 4.112022582305329) internal successors, (263667), 64121 states have internal predecessors, (263667), 0 states have call successors, (0), 0 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 18:20:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64122 states to 64122 states and 263667 transitions. [2021-07-13 18:20:15,656 INFO L78 Accepts]: Start accepts. Automaton has 64122 states and 263667 transitions. Word has length 74 [2021-07-13 18:20:15,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:15,656 INFO L482 AbstractCegarLoop]: Abstraction has 64122 states and 263667 transitions. [2021-07-13 18:20:15,656 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 18:20:15,657 INFO L276 IsEmpty]: Start isEmpty. Operand 64122 states and 263667 transitions. [2021-07-13 18:20:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:16,321 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:16,321 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 18:20:16,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 18:20:16,321 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:16,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:16,322 INFO L82 PathProgramCache]: Analyzing trace with hash -153897446, now seen corresponding path program 1 times [2021-07-13 18:20:16,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:16,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796155155] [2021-07-13 18:20:16,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:16,644 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 18:20:16,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:16,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796155155] [2021-07-13 18:20:16,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796155155] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:16,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:16,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:20:16,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579928091] [2021-07-13 18:20:16,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:20:16,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:16,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:20:16,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:20:16,645 INFO L87 Difference]: Start difference. First operand 64122 states and 263667 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 18:20:18,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:18,115 INFO L93 Difference]: Finished difference Result 73885 states and 301287 transitions. [2021-07-13 18:20:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:20:18,115 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 18:20:18,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:18,689 INFO L225 Difference]: With dead ends: 73885 [2021-07-13 18:20:18,689 INFO L226 Difference]: Without dead ends: 73177 [2021-07-13 18:20:18,690 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 568.3ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-07-13 18:20:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73177 states. [2021-07-13 18:20:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73177 to 64113. [2021-07-13 18:20:20,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64113 states, 64112 states have (on average 4.112365859745445) internal successors, (263652), 64112 states have internal predecessors, (263652), 0 states have call successors, (0), 0 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 18:20:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64113 states to 64113 states and 263652 transitions. [2021-07-13 18:20:20,964 INFO L78 Accepts]: Start accepts. Automaton has 64113 states and 263652 transitions. Word has length 74 [2021-07-13 18:20:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:20,964 INFO L482 AbstractCegarLoop]: Abstraction has 64113 states and 263652 transitions. [2021-07-13 18:20:20,964 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 18:20:20,964 INFO L276 IsEmpty]: Start isEmpty. Operand 64113 states and 263652 transitions. [2021-07-13 18:20:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:21,438 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:21,438 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 18:20:21,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 18:20:21,439 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:21,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:21,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1259251836, now seen corresponding path program 2 times [2021-07-13 18:20:21,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:21,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197856749] [2021-07-13 18:20:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:21,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:21,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:21,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197856749] [2021-07-13 18:20:21,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197856749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:21,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:21,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:20:21,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514976297] [2021-07-13 18:20:21,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:20:21,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:21,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:20:21,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:20:21,829 INFO L87 Difference]: Start difference. First operand 64113 states and 263652 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 18:20:23,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:23,395 INFO L93 Difference]: Finished difference Result 72818 states and 297312 transitions. [2021-07-13 18:20:23,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:20:23,396 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 18:20:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:23,957 INFO L225 Difference]: With dead ends: 72818 [2021-07-13 18:20:23,957 INFO L226 Difference]: Without dead ends: 72110 [2021-07-13 18:20:23,958 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 569.7ms TimeCoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:20:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72110 states. [2021-07-13 18:20:25,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72110 to 64119. [2021-07-13 18:20:25,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64119 states, 64118 states have (on average 4.1122773636108425) internal successors, (263671), 64118 states have internal predecessors, (263671), 0 states have call successors, (0), 0 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 18:20:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64119 states to 64119 states and 263671 transitions. [2021-07-13 18:20:26,007 INFO L78 Accepts]: Start accepts. Automaton has 64119 states and 263671 transitions. Word has length 74 [2021-07-13 18:20:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:26,007 INFO L482 AbstractCegarLoop]: Abstraction has 64119 states and 263671 transitions. [2021-07-13 18:20:26,007 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 18:20:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 64119 states and 263671 transitions. [2021-07-13 18:20:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:26,089 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:26,089 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 18:20:26,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 18:20:26,089 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:26,090 INFO L82 PathProgramCache]: Analyzing trace with hash -884497698, now seen corresponding path program 3 times [2021-07-13 18:20:26,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:26,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730961143] [2021-07-13 18:20:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:26,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:26,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730961143] [2021-07-13 18:20:26,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730961143] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:26,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:26,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:20:26,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272566511] [2021-07-13 18:20:26,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:20:26,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:26,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:20:26,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:20:26,834 INFO L87 Difference]: Start difference. First operand 64119 states and 263671 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 18:20:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:28,214 INFO L93 Difference]: Finished difference Result 69409 states and 283728 transitions. [2021-07-13 18:20:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:20:28,214 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 18:20:28,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:28,514 INFO L225 Difference]: With dead ends: 69409 [2021-07-13 18:20:28,514 INFO L226 Difference]: Without dead ends: 68701 [2021-07-13 18:20:28,515 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 641.3ms TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:20:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68701 states. [2021-07-13 18:20:30,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68701 to 60663. [2021-07-13 18:20:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 0 states have call successors, (0), 0 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 18:20:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-13 18:20:30,862 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-13 18:20:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:30,862 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-13 18:20:30,862 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 18:20:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-13 18:20:30,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:30,938 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:30,938 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 18:20:30,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 18:20:30,938 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:30,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1180050333, now seen corresponding path program 4 times [2021-07-13 18:20:30,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:30,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407112043] [2021-07-13 18:20:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:31,444 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-07-13 18:20:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:31,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:31,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407112043] [2021-07-13 18:20:31,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407112043] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:31,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:31,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:20:31,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444893437] [2021-07-13 18:20:31,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:20:31,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:31,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:20:31,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:20:31,635 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 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 18:20:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:33,354 INFO L93 Difference]: Finished difference Result 66656 states and 271449 transitions. [2021-07-13 18:20:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:20:33,354 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 18:20:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:33,597 INFO L225 Difference]: With dead ends: 66656 [2021-07-13 18:20:33,597 INFO L226 Difference]: Without dead ends: 64214 [2021-07-13 18:20:33,598 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1371.3ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:20:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64214 states. [2021-07-13 18:20:35,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64214 to 60663. [2021-07-13 18:20:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 0 states have call successors, (0), 0 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 18:20:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-13 18:20:35,746 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-13 18:20:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:35,746 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-13 18:20:35,746 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 18:20:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-13 18:20:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:35,821 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:35,821 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 18:20:35,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-13 18:20:35,821 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:35,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:35,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1096231199, now seen corresponding path program 5 times [2021-07-13 18:20:35,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:35,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625159067] [2021-07-13 18:20:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:36,390 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-07-13 18:20:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:36,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:36,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625159067] [2021-07-13 18:20:36,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625159067] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:36,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:36,535 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:20:36,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602536119] [2021-07-13 18:20:36,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:20:36,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:36,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:20:36,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:20:36,536 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 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 18:20:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:38,246 INFO L93 Difference]: Finished difference Result 65568 states and 267428 transitions. [2021-07-13 18:20:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:20:38,246 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 18:20:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:38,471 INFO L225 Difference]: With dead ends: 65568 [2021-07-13 18:20:38,471 INFO L226 Difference]: Without dead ends: 63126 [2021-07-13 18:20:38,471 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1316.9ms TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:20:39,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63126 states. [2021-07-13 18:20:40,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63126 to 60663. [2021-07-13 18:20:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 0 states have call successors, (0), 0 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 18:20:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-13 18:20:40,971 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-13 18:20:40,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:40,971 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-13 18:20:40,971 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 18:20:40,972 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-13 18:20:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:41,047 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:41,047 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 18:20:41,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-13 18:20:41,048 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:41,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1554251865, now seen corresponding path program 6 times [2021-07-13 18:20:41,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:41,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348556373] [2021-07-13 18:20:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:41,355 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 18:20:41,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:41,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348556373] [2021-07-13 18:20:41,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348556373] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:41,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:41,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:20:41,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954694674] [2021-07-13 18:20:41,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:20:41,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:41,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:20:41,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:20:41,356 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 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 18:20:41,730 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-07-13 18:20:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:43,074 INFO L93 Difference]: Finished difference Result 66611 states and 271396 transitions. [2021-07-13 18:20:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:20:43,074 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 18:20:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:43,434 INFO L225 Difference]: With dead ends: 66611 [2021-07-13 18:20:43,435 INFO L226 Difference]: Without dead ends: 64169 [2021-07-13 18:20:43,435 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 825.7ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:20:43,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64169 states. [2021-07-13 18:20:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64169 to 60663. [2021-07-13 18:20:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 0 states have call successors, (0), 0 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 18:20:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-13 18:20:46,552 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-13 18:20:46,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:46,553 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-13 18:20:46,553 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 18:20:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-13 18:20:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:46,742 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:46,742 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 18:20:46,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-13 18:20:46,742 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:46,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1517951545, now seen corresponding path program 7 times [2021-07-13 18:20:46,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:46,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574530617] [2021-07-13 18:20:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:47,372 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 18:20:47,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:47,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574530617] [2021-07-13 18:20:47,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574530617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:47,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:47,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:20:47,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95054156] [2021-07-13 18:20:47,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:20:47,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:47,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:20:47,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:20:47,373 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 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 18:20:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:49,099 INFO L93 Difference]: Finished difference Result 65874 states and 268746 transitions. [2021-07-13 18:20:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:20:49,099 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 18:20:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:49,643 INFO L225 Difference]: With dead ends: 65874 [2021-07-13 18:20:49,644 INFO L226 Difference]: Without dead ends: 63477 [2021-07-13 18:20:49,646 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1072.4ms TimeCoverageRelationStatistics Valid=199, Invalid=1283, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:20:49,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63477 states. [2021-07-13 18:20:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63477 to 60663. [2021-07-13 18:20:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60663 states, 60662 states have (on average 4.120421351092941) internal successors, (249953), 60662 states have internal predecessors, (249953), 0 states have call successors, (0), 0 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 18:20:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60663 states to 60663 states and 249953 transitions. [2021-07-13 18:20:51,895 INFO L78 Accepts]: Start accepts. Automaton has 60663 states and 249953 transitions. Word has length 74 [2021-07-13 18:20:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:51,895 INFO L482 AbstractCegarLoop]: Abstraction has 60663 states and 249953 transitions. [2021-07-13 18:20:51,895 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 18:20:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 60663 states and 249953 transitions. [2021-07-13 18:20:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:51,972 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:51,972 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 18:20:51,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-13 18:20:51,972 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:51,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:51,973 INFO L82 PathProgramCache]: Analyzing trace with hash -755893651, now seen corresponding path program 8 times [2021-07-13 18:20:51,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:51,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710625644] [2021-07-13 18:20:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:52,515 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-07-13 18:20:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:53,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:53,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710625644] [2021-07-13 18:20:53,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710625644] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:53,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:53,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:20:53,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924988878] [2021-07-13 18:20:53,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:20:53,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:20:53,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:20:53,074 INFO L87 Difference]: Start difference. First operand 60663 states and 249953 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 18:20:55,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:55,064 INFO L93 Difference]: Finished difference Result 65379 states and 266975 transitions. [2021-07-13 18:20:55,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:20:55,065 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 18:20:55,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:55,542 INFO L225 Difference]: With dead ends: 65379 [2021-07-13 18:20:55,542 INFO L226 Difference]: Without dead ends: 63027 [2021-07-13 18:20:55,542 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1615.6ms TimeCoverageRelationStatistics Valid=204, Invalid=1518, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 18:20:55,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63027 states. [2021-07-13 18:20:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63027 to 59988. [2021-07-13 18:20:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59988 states, 59987 states have (on average 4.1125243802823945) internal successors, (246698), 59987 states have internal predecessors, (246698), 0 states have call successors, (0), 0 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 18:20:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59988 states to 59988 states and 246698 transitions. [2021-07-13 18:20:57,490 INFO L78 Accepts]: Start accepts. Automaton has 59988 states and 246698 transitions. Word has length 74 [2021-07-13 18:20:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:57,490 INFO L482 AbstractCegarLoop]: Abstraction has 59988 states and 246698 transitions. [2021-07-13 18:20:57,490 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 18:20:57,490 INFO L276 IsEmpty]: Start isEmpty. Operand 59988 states and 246698 transitions. [2021-07-13 18:20:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:57,573 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:57,573 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 18:20:57,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-13 18:20:57,573 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:57,574 INFO L82 PathProgramCache]: Analyzing trace with hash -6480265, now seen corresponding path program 9 times [2021-07-13 18:20:57,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:57,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757619321] [2021-07-13 18:20:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:57,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:57,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757619321] [2021-07-13 18:20:57,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757619321] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:57,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:57,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:20:57,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133476064] [2021-07-13 18:20:57,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:20:57,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:57,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:20:57,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:20:57,794 INFO L87 Difference]: Start difference. First operand 59988 states and 246698 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 18:20:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:59,092 INFO L93 Difference]: Finished difference Result 62998 states and 256403 transitions. [2021-07-13 18:20:59,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:20:59,092 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 18:20:59,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:59,353 INFO L225 Difference]: With dead ends: 62998 [2021-07-13 18:20:59,353 INFO L226 Difference]: Without dead ends: 60556 [2021-07-13 18:20:59,353 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 619.6ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:20:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60556 states. [2021-07-13 18:21:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60556 to 58100. [2021-07-13 18:21:01,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58100 states, 58099 states have (on average 4.112549269350591) internal successors, (238935), 58099 states have internal predecessors, (238935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:01,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58100 states to 58100 states and 238935 transitions. [2021-07-13 18:21:01,339 INFO L78 Accepts]: Start accepts. Automaton has 58100 states and 238935 transitions. Word has length 74 [2021-07-13 18:21:01,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:01,339 INFO L482 AbstractCegarLoop]: Abstraction has 58100 states and 238935 transitions. [2021-07-13 18:21:01,339 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 18:21:01,339 INFO L276 IsEmpty]: Start isEmpty. Operand 58100 states and 238935 transitions. [2021-07-13 18:21:01,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 18:21:01,700 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:01,700 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 18:21:01,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 18:21:01,700 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:01,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1313616915, now seen corresponding path program 1 times [2021-07-13 18:21:01,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:01,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358449447] [2021-07-13 18:21:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:01,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:01,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358449447] [2021-07-13 18:21:01,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358449447] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:01,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:01,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 18:21:01,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703996486] [2021-07-13 18:21:01,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 18:21:01,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:01,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 18:21:01,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:21:01,869 INFO L87 Difference]: Start difference. First operand 58100 states and 238935 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:02,790 INFO L93 Difference]: Finished difference Result 68834 states and 279215 transitions. [2021-07-13 18:21:02,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 18:21:02,791 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 18:21:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:03,089 INFO L225 Difference]: With dead ends: 68834 [2021-07-13 18:21:03,089 INFO L226 Difference]: Without dead ends: 56513 [2021-07-13 18:21:03,089 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 182.8ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:21:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56513 states. [2021-07-13 18:21:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56513 to 49781. [2021-07-13 18:21:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49781 states, 49780 states have (on average 4.071032543190036) internal successors, (202656), 49780 states have internal predecessors, (202656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:05,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49781 states to 49781 states and 202656 transitions. [2021-07-13 18:21:05,021 INFO L78 Accepts]: Start accepts. Automaton has 49781 states and 202656 transitions. Word has length 75 [2021-07-13 18:21:05,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:05,022 INFO L482 AbstractCegarLoop]: Abstraction has 49781 states and 202656 transitions. [2021-07-13 18:21:05,022 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 18:21:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 49781 states and 202656 transitions. [2021-07-13 18:21:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 18:21:05,089 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:05,090 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 18:21:05,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-13 18:21:05,090 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:05,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1333925235, now seen corresponding path program 1 times [2021-07-13 18:21:05,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:05,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487406010] [2021-07-13 18:21:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:05,198 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 18:21:05,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:05,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487406010] [2021-07-13 18:21:05,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487406010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:05,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:05,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:21:05,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106200536] [2021-07-13 18:21:05,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:21:05,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:05,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:21:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:21:05,199 INFO L87 Difference]: Start difference. First operand 49781 states and 202656 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:06,124 INFO L93 Difference]: Finished difference Result 63188 states and 255322 transitions. [2021-07-13 18:21:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 18:21:06,125 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 18:21:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:06,357 INFO L225 Difference]: With dead ends: 63188 [2021-07-13 18:21:06,357 INFO L226 Difference]: Without dead ends: 53153 [2021-07-13 18:21:06,357 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:21:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53153 states. [2021-07-13 18:21:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53153 to 45767. [2021-07-13 18:21:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45767 states, 45766 states have (on average 4.058362102871127) internal successors, (185735), 45766 states have internal predecessors, (185735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45767 states to 45767 states and 185735 transitions. [2021-07-13 18:21:08,260 INFO L78 Accepts]: Start accepts. Automaton has 45767 states and 185735 transitions. Word has length 75 [2021-07-13 18:21:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:08,260 INFO L482 AbstractCegarLoop]: Abstraction has 45767 states and 185735 transitions. [2021-07-13 18:21:08,261 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 18:21:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 45767 states and 185735 transitions. [2021-07-13 18:21:08,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 18:21:08,329 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:08,329 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 18:21:08,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-13 18:21:08,330 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:08,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:08,330 INFO L82 PathProgramCache]: Analyzing trace with hash -606793233, now seen corresponding path program 2 times [2021-07-13 18:21:08,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:08,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436782002] [2021-07-13 18:21:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:08,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:08,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436782002] [2021-07-13 18:21:08,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436782002] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:08,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:08,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 18:21:08,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770952895] [2021-07-13 18:21:08,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 18:21:08,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:08,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 18:21:08,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:21:08,463 INFO L87 Difference]: Start difference. First operand 45767 states and 185735 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:09,430 INFO L93 Difference]: Finished difference Result 51725 states and 208645 transitions. [2021-07-13 18:21:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 18:21:09,430 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 18:21:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:09,649 INFO L225 Difference]: With dead ends: 51725 [2021-07-13 18:21:09,649 INFO L226 Difference]: Without dead ends: 45335 [2021-07-13 18:21:09,649 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 227.0ms TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2021-07-13 18:21:09,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45335 states. [2021-07-13 18:21:10,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45335 to 42692. [2021-07-13 18:21:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42692 states, 42691 states have (on average 4.06488487034738) internal successors, (173534), 42691 states have internal predecessors, (173534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42692 states to 42692 states and 173534 transitions. [2021-07-13 18:21:11,332 INFO L78 Accepts]: Start accepts. Automaton has 42692 states and 173534 transitions. Word has length 75 [2021-07-13 18:21:11,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:11,333 INFO L482 AbstractCegarLoop]: Abstraction has 42692 states and 173534 transitions. [2021-07-13 18:21:11,333 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 18:21:11,333 INFO L276 IsEmpty]: Start isEmpty. Operand 42692 states and 173534 transitions. [2021-07-13 18:21:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-13 18:21:11,408 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:11,408 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 18:21:11,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-13 18:21:11,408 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:11,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:11,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1105775058, now seen corresponding path program 1 times [2021-07-13 18:21:11,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:11,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945932457] [2021-07-13 18:21:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:12,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:12,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945932457] [2021-07-13 18:21:12,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945932457] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:12,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:12,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:21:12,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097186995] [2021-07-13 18:21:12,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:21:12,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:12,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:21:12,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:21:12,126 INFO L87 Difference]: Start difference. First operand 42692 states and 173534 transitions. Second operand has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:15,119 INFO L93 Difference]: Finished difference Result 56509 states and 230317 transitions. [2021-07-13 18:21:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:21:15,119 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 18:21:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:15,603 INFO L225 Difference]: With dead ends: 56509 [2021-07-13 18:21:15,603 INFO L226 Difference]: Without dead ends: 55111 [2021-07-13 18:21:15,604 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1958.8ms TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2021-07-13 18:21:15,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55111 states. [2021-07-13 18:21:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55111 to 48038. [2021-07-13 18:21:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48038 states, 48037 states have (on average 4.131440348065033) internal successors, (198462), 48037 states have internal predecessors, (198462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48038 states to 48038 states and 198462 transitions. [2021-07-13 18:21:17,427 INFO L78 Accepts]: Start accepts. Automaton has 48038 states and 198462 transitions. Word has length 77 [2021-07-13 18:21:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:17,427 INFO L482 AbstractCegarLoop]: Abstraction has 48038 states and 198462 transitions. [2021-07-13 18:21:17,427 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 18:21:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 48038 states and 198462 transitions. [2021-07-13 18:21:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-07-13 18:21:17,508 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:17,510 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 18:21:17,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-13 18:21:17,510 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:17,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:17,512 INFO L82 PathProgramCache]: Analyzing trace with hash -106841762, now seen corresponding path program 2 times [2021-07-13 18:21:17,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:17,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240973360] [2021-07-13 18:21:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:18,016 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 18:21:18,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:18,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240973360] [2021-07-13 18:21:18,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240973360] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:18,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:18,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-07-13 18:21:18,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651259127] [2021-07-13 18:21:18,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-13 18:21:18,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:18,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-13 18:21:18,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-07-13 18:21:18,018 INFO L87 Difference]: Start difference. First operand 48038 states and 198462 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:18,567 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2021-07-13 18:21:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:19,974 INFO L93 Difference]: Finished difference Result 44303 states and 180392 transitions. [2021-07-13 18:21:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:21:19,975 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 18:21:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:20,120 INFO L225 Difference]: With dead ends: 44303 [2021-07-13 18:21:20,120 INFO L226 Difference]: Without dead ends: 43043 [2021-07-13 18:21:20,121 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1332.1ms TimeCoverageRelationStatistics Valid=237, Invalid=1569, Unknown=0, NotChecked=0, Total=1806 [2021-07-13 18:21:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43043 states. [2021-07-13 18:21:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43043 to 33407. [2021-07-13 18:21:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33407 states, 33406 states have (on average 4.022061905046997) internal successors, (134361), 33406 states have internal predecessors, (134361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:21,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33407 states to 33407 states and 134361 transitions. [2021-07-13 18:21:21,217 INFO L78 Accepts]: Start accepts. Automaton has 33407 states and 134361 transitions. Word has length 77 [2021-07-13 18:21:21,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:21,217 INFO L482 AbstractCegarLoop]: Abstraction has 33407 states and 134361 transitions. [2021-07-13 18:21:21,217 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 18:21:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 33407 states and 134361 transitions. [2021-07-13 18:21:21,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-13 18:21:21,676 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:21,676 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 18:21:21,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-13 18:21:21,676 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:21,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:21,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1211061915, now seen corresponding path program 1 times [2021-07-13 18:21:21,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:21,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968507808] [2021-07-13 18:21:21,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:22,451 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 18:21:22,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:22,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968507808] [2021-07-13 18:21:22,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968507808] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:22,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:22,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:21:22,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525256827] [2021-07-13 18:21:22,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:21:22,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:22,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:21:22,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:21:22,453 INFO L87 Difference]: Start difference. First operand 33407 states and 134361 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:25,195 INFO L93 Difference]: Finished difference Result 29773 states and 118565 transitions. [2021-07-13 18:21:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 18:21:25,195 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-07-13 18:21:25,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:25,286 INFO L225 Difference]: With dead ends: 29773 [2021-07-13 18:21:25,287 INFO L226 Difference]: Without dead ends: 27685 [2021-07-13 18:21:25,289 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 2006.7ms TimeCoverageRelationStatistics Valid=264, Invalid=2286, Unknown=0, NotChecked=0, Total=2550 [2021-07-13 18:21:25,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27685 states. [2021-07-13 18:21:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27685 to 25523. [2021-07-13 18:21:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25523 states, 25522 states have (on average 3.9933390800094037) internal successors, (101918), 25522 states have internal predecessors, (101918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25523 states to 25523 states and 101918 transitions. [2021-07-13 18:21:26,005 INFO L78 Accepts]: Start accepts. Automaton has 25523 states and 101918 transitions. Word has length 79 [2021-07-13 18:21:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:26,006 INFO L482 AbstractCegarLoop]: Abstraction has 25523 states and 101918 transitions. [2021-07-13 18:21:26,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 25523 states and 101918 transitions. [2021-07-13 18:21:26,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-13 18:21:26,044 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:26,044 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 18:21:26,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-13 18:21:26,044 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:26,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:26,044 INFO L82 PathProgramCache]: Analyzing trace with hash 406473118, now seen corresponding path program 1 times [2021-07-13 18:21:26,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:26,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596659617] [2021-07-13 18:21:26,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:26,689 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-07-13 18:21:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:27,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:27,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596659617] [2021-07-13 18:21:27,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596659617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:27,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:27,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:21:27,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120096474] [2021-07-13 18:21:27,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:21:27,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:27,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:21:27,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:21:27,219 INFO L87 Difference]: Start difference. First operand 25523 states and 101918 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:28,337 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2021-07-13 18:21:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:29,637 INFO L93 Difference]: Finished difference Result 34270 states and 136437 transitions. [2021-07-13 18:21:29,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:21:29,637 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-07-13 18:21:29,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:29,881 INFO L225 Difference]: With dead ends: 34270 [2021-07-13 18:21:29,881 INFO L226 Difference]: Without dead ends: 30232 [2021-07-13 18:21:29,882 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2303.8ms TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2021-07-13 18:21:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30232 states. [2021-07-13 18:21:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30232 to 26090. [2021-07-13 18:21:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26090 states, 26089 states have (on average 4.030625934301813) internal successors, (105155), 26089 states have internal predecessors, (105155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26090 states to 26090 states and 105155 transitions. [2021-07-13 18:21:30,625 INFO L78 Accepts]: Start accepts. Automaton has 26090 states and 105155 transitions. Word has length 79 [2021-07-13 18:21:30,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:30,625 INFO L482 AbstractCegarLoop]: Abstraction has 26090 states and 105155 transitions. [2021-07-13 18:21:30,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 26090 states and 105155 transitions. [2021-07-13 18:21:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-07-13 18:21:30,666 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:30,666 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 18:21:30,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-13 18:21:30,667 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:30,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1342799100, now seen corresponding path program 2 times [2021-07-13 18:21:30,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:30,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588959069] [2021-07-13 18:21:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:31,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:31,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588959069] [2021-07-13 18:21:31,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588959069] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:31,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:31,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-13 18:21:31,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811576498] [2021-07-13 18:21:31,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-13 18:21:31,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-13 18:21:31,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-07-13 18:21:31,400 INFO L87 Difference]: Start difference. First operand 26090 states and 105155 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:33,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:33,040 INFO L93 Difference]: Finished difference Result 25967 states and 103470 transitions. [2021-07-13 18:21:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:21:33,040 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-07-13 18:21:33,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:33,108 INFO L225 Difference]: With dead ends: 25967 [2021-07-13 18:21:33,108 INFO L226 Difference]: Without dead ends: 21515 [2021-07-13 18:21:33,109 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1174.2ms TimeCoverageRelationStatistics Valid=229, Invalid=1663, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:21:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21515 states. [2021-07-13 18:21:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21515 to 17789. [2021-07-13 18:21:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17789 states, 17788 states have (on average 3.902912075556555) internal successors, (69425), 17788 states have internal predecessors, (69425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:33,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 69425 transitions. [2021-07-13 18:21:33,535 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 69425 transitions. Word has length 79 [2021-07-13 18:21:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:33,535 INFO L482 AbstractCegarLoop]: Abstraction has 17789 states and 69425 transitions. [2021-07-13 18:21:33,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 69425 transitions. [2021-07-13 18:21:33,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:33,562 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:33,562 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 18:21:33,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-13 18:21:33,563 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:33,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:33,563 INFO L82 PathProgramCache]: Analyzing trace with hash 604863419, now seen corresponding path program 1 times [2021-07-13 18:21:33,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:33,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104839225] [2021-07-13 18:21:33,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:34,124 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 18:21:34,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:34,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104839225] [2021-07-13 18:21:34,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104839225] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:34,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:34,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 18:21:34,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715089036] [2021-07-13 18:21:34,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 18:21:34,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:34,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 18:21:34,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:21:34,126 INFO L87 Difference]: Start difference. First operand 17789 states and 69425 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:34,483 INFO L93 Difference]: Finished difference Result 19726 states and 75766 transitions. [2021-07-13 18:21:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 18:21:34,483 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 18:21:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:34,535 INFO L225 Difference]: With dead ends: 19726 [2021-07-13 18:21:34,535 INFO L226 Difference]: Without dead ends: 17781 [2021-07-13 18:21:34,535 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 246.7ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-13 18:21:34,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-07-13 18:21:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-07-13 18:21:35,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9037682789651296) internal successors, (69409), 17780 states have internal predecessors, (69409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69409 transitions. [2021-07-13 18:21:35,107 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69409 transitions. Word has length 80 [2021-07-13 18:21:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:35,108 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69409 transitions. [2021-07-13 18:21:35,108 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 18:21:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69409 transitions. [2021-07-13 18:21:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:35,136 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:35,136 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 18:21:35,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-13 18:21:35,136 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:35,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:35,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1146691449, now seen corresponding path program 2 times [2021-07-13 18:21:35,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:35,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695588862] [2021-07-13 18:21:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:35,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:35,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695588862] [2021-07-13 18:21:35,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695588862] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:35,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:35,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:21:35,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813861988] [2021-07-13 18:21:35,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:21:35,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:35,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:21:35,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:21:35,400 INFO L87 Difference]: Start difference. First operand 17781 states and 69409 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:36,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:36,149 INFO L93 Difference]: Finished difference Result 19689 states and 75705 transitions. [2021-07-13 18:21:36,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:21:36,150 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-13 18:21:36,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:36,201 INFO L225 Difference]: With dead ends: 19689 [2021-07-13 18:21:36,202 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:36,202 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 553.8ms TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-07-13 18:21:36,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.905977128049124) internal successors, (69335), 17751 states have internal predecessors, (69335), 0 states have call successors, (0), 0 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 18:21:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69335 transitions. [2021-07-13 18:21:36,853 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69335 transitions. Word has length 80 [2021-07-13 18:21:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:36,853 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69335 transitions. [2021-07-13 18:21:36,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69335 transitions. [2021-07-13 18:21:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:36,880 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:36,880 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 18:21:36,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-13 18:21:36,880 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:36,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1422906705, now seen corresponding path program 3 times [2021-07-13 18:21:36,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:36,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765241545] [2021-07-13 18:21:36,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:37,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:37,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765241545] [2021-07-13 18:21:37,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765241545] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:37,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:37,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:21:37,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834979448] [2021-07-13 18:21:37,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:21:37,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:37,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:21:37,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:21:37,424 INFO L87 Difference]: Start difference. First operand 17752 states and 69335 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 18:21:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:38,656 INFO L93 Difference]: Finished difference Result 19659 states and 75630 transitions. [2021-07-13 18:21:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:21:38,656 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 18:21:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:38,708 INFO L225 Difference]: With dead ends: 19659 [2021-07-13 18:21:38,708 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:38,708 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1037.8ms TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:21:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.905808123486001) internal successors, (69332), 17751 states have internal predecessors, (69332), 0 states have call successors, (0), 0 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 18:21:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69332 transitions. [2021-07-13 18:21:39,264 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69332 transitions. Word has length 80 [2021-07-13 18:21:39,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:39,265 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69332 transitions. [2021-07-13 18:21:39,265 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 18:21:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69332 transitions. [2021-07-13 18:21:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:39,291 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:39,292 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 18:21:39,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-13 18:21:39,292 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:39,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:39,292 INFO L82 PathProgramCache]: Analyzing trace with hash -268089029, now seen corresponding path program 4 times [2021-07-13 18:21:39,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:39,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291108351] [2021-07-13 18:21:39,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:39,780 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 18:21:39,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:39,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291108351] [2021-07-13 18:21:39,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291108351] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:39,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:39,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:21:39,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006162802] [2021-07-13 18:21:39,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:21:39,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:39,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:21:39,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:21:39,782 INFO L87 Difference]: Start difference. First operand 17752 states and 69332 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 18:21:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:40,950 INFO L93 Difference]: Finished difference Result 19653 states and 75617 transitions. [2021-07-13 18:21:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:21:40,951 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 18:21:40,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:41,002 INFO L225 Difference]: With dead ends: 19653 [2021-07-13 18:21:41,002 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:41,002 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 897.5ms TimeCoverageRelationStatistics Valid=159, Invalid=1173, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:21:41,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9054701143597543) internal successors, (69326), 17751 states have internal predecessors, (69326), 0 states have call successors, (0), 0 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 18:21:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69326 transitions. [2021-07-13 18:21:41,496 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69326 transitions. Word has length 80 [2021-07-13 18:21:41,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:41,496 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69326 transitions. [2021-07-13 18:21:41,497 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 18:21:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69326 transitions. [2021-07-13 18:21:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:41,523 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:41,523 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 18:21:41,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-13 18:21:41,523 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:41,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:41,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1802336639, now seen corresponding path program 5 times [2021-07-13 18:21:41,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:41,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367426827] [2021-07-13 18:21:41,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:41,979 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 18:21:41,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:41,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367426827] [2021-07-13 18:21:41,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367426827] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:41,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:41,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:21:41,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853352302] [2021-07-13 18:21:41,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:21:41,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:41,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:21:41,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:21:41,981 INFO L87 Difference]: Start difference. First operand 17752 states and 69326 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 18:21:42,537 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2021-07-13 18:21:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:43,196 INFO L93 Difference]: Finished difference Result 19638 states and 75584 transitions. [2021-07-13 18:21:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:21:43,197 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 18:21:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:43,249 INFO L225 Difference]: With dead ends: 19638 [2021-07-13 18:21:43,249 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:43,249 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1104.0ms TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:21:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9053574446510058) internal successors, (69324), 17751 states have internal predecessors, (69324), 0 states have call successors, (0), 0 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 18:21:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69324 transitions. [2021-07-13 18:21:43,753 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69324 transitions. Word has length 80 [2021-07-13 18:21:43,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:43,753 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69324 transitions. [2021-07-13 18:21:43,753 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 18:21:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69324 transitions. [2021-07-13 18:21:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:43,780 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:43,781 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 18:21:43,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-13 18:21:43,781 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:43,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:43,781 INFO L82 PathProgramCache]: Analyzing trace with hash 210872567, now seen corresponding path program 6 times [2021-07-13 18:21:43,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:43,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574611937] [2021-07-13 18:21:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:44,114 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 18:21:44,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:44,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574611937] [2021-07-13 18:21:44,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574611937] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:44,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:44,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:21:44,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072873144] [2021-07-13 18:21:44,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:21:44,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:44,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:21:44,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:21:44,116 INFO L87 Difference]: Start difference. First operand 17752 states and 69324 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 18:21:45,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:45,056 INFO L93 Difference]: Finished difference Result 19633 states and 75573 transitions. [2021-07-13 18:21:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:21:45,056 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 18:21:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:45,106 INFO L225 Difference]: With dead ends: 19633 [2021-07-13 18:21:45,107 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:45,107 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 623.3ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:21:45,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9043434172722664) internal successors, (69306), 17751 states have internal predecessors, (69306), 0 states have call successors, (0), 0 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 18:21:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69306 transitions. [2021-07-13 18:21:45,652 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69306 transitions. Word has length 80 [2021-07-13 18:21:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:45,652 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69306 transitions. [2021-07-13 18:21:45,652 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 18:21:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69306 transitions. [2021-07-13 18:21:45,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:45,679 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:45,679 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 18:21:45,679 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-13 18:21:45,679 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:45,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:45,680 INFO L82 PathProgramCache]: Analyzing trace with hash 379667429, now seen corresponding path program 7 times [2021-07-13 18:21:45,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:45,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618040561] [2021-07-13 18:21:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:46,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:46,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618040561] [2021-07-13 18:21:46,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618040561] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:46,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:46,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:21:46,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444117047] [2021-07-13 18:21:46,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:21:46,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:46,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:21:46,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:21:46,112 INFO L87 Difference]: Start difference. First operand 17752 states and 69306 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 18:21:47,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:47,250 INFO L93 Difference]: Finished difference Result 19620 states and 75546 transitions. [2021-07-13 18:21:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:21:47,250 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 18:21:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:47,302 INFO L225 Difference]: With dead ends: 19620 [2021-07-13 18:21:47,302 INFO L226 Difference]: Without dead ends: 17784 [2021-07-13 18:21:47,302 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1006.3ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:21:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17784 states. [2021-07-13 18:21:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17784 to 17752. [2021-07-13 18:21:47,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.9025407019322853) internal successors, (69274), 17751 states have internal predecessors, (69274), 0 states have call successors, (0), 0 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 18:21:47,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69274 transitions. [2021-07-13 18:21:47,825 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69274 transitions. Word has length 80 [2021-07-13 18:21:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:47,825 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69274 transitions. [2021-07-13 18:21:47,826 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 18:21:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69274 transitions. [2021-07-13 18:21:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:47,853 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:47,854 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 18:21:47,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-13 18:21:47,854 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:47,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:47,854 INFO L82 PathProgramCache]: Analyzing trace with hash 877408505, now seen corresponding path program 8 times [2021-07-13 18:21:47,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:47,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483794169] [2021-07-13 18:21:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:48,282 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 18:21:48,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:48,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483794169] [2021-07-13 18:21:48,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483794169] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:48,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:48,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:21:48,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899892635] [2021-07-13 18:21:48,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:21:48,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:48,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:21:48,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:21:48,283 INFO L87 Difference]: Start difference. First operand 17752 states and 69274 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 18:21:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:49,373 INFO L93 Difference]: Finished difference Result 19472 states and 75100 transitions. [2021-07-13 18:21:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:21:49,373 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 18:21:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:49,423 INFO L225 Difference]: With dead ends: 19472 [2021-07-13 18:21:49,423 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:49,423 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 769.1ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:21:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:49,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.901639344262295) internal successors, (69258), 17751 states have internal predecessors, (69258), 0 states have call successors, (0), 0 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 18:21:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69258 transitions. [2021-07-13 18:21:49,860 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69258 transitions. Word has length 80 [2021-07-13 18:21:49,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:49,860 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69258 transitions. [2021-07-13 18:21:49,860 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 18:21:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69258 transitions. [2021-07-13 18:21:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:49,888 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:49,888 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 18:21:49,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-13 18:21:49,888 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:49,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:49,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1272369107, now seen corresponding path program 9 times [2021-07-13 18:21:49,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:49,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675072186] [2021-07-13 18:21:49,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:50,449 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 18:21:50,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:50,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675072186] [2021-07-13 18:21:50,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675072186] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:50,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:50,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:21:50,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441680887] [2021-07-13 18:21:50,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:21:50,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:50,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:21:50,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:21:50,450 INFO L87 Difference]: Start difference. First operand 17752 states and 69258 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 18:21:50,688 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-07-13 18:21:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:51,607 INFO L93 Difference]: Finished difference Result 19376 states and 74808 transitions. [2021-07-13 18:21:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:21:51,607 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 18:21:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:51,657 INFO L225 Difference]: With dead ends: 19376 [2021-07-13 18:21:51,657 INFO L226 Difference]: Without dead ends: 17752 [2021-07-13 18:21:51,657 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1075.8ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:21:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-07-13 18:21:52,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 17752. [2021-07-13 18:21:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 3.898033913582333) internal successors, (69194), 17751 states have internal predecessors, (69194), 0 states have call successors, (0), 0 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 18:21:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 69194 transitions. [2021-07-13 18:21:52,089 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 69194 transitions. Word has length 80 [2021-07-13 18:21:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:52,090 INFO L482 AbstractCegarLoop]: Abstraction has 17752 states and 69194 transitions. [2021-07-13 18:21:52,090 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 18:21:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 69194 transitions. [2021-07-13 18:21:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:52,116 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:52,116 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 18:21:52,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-13 18:21:52,116 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:52,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:52,117 INFO L82 PathProgramCache]: Analyzing trace with hash 154953031, now seen corresponding path program 10 times [2021-07-13 18:21:52,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:52,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037829368] [2021-07-13 18:21:52,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:52,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:52,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037829368] [2021-07-13 18:21:52,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037829368] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:52,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:52,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:21:52,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77553597] [2021-07-13 18:21:52,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:21:52,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:52,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:21:52,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:21:52,879 INFO L87 Difference]: Start difference. First operand 17752 states and 69194 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 18:21:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:54,469 INFO L93 Difference]: Finished difference Result 19312 states and 74472 transitions. [2021-07-13 18:21:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:21:54,469 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 18:21:54,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:54,504 INFO L225 Difference]: With dead ends: 19312 [2021-07-13 18:21:54,505 INFO L226 Difference]: Without dead ends: 12880 [2021-07-13 18:21:54,505 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1319.5ms TimeCoverageRelationStatistics Valid=240, Invalid=1922, Unknown=0, NotChecked=0, Total=2162 [2021-07-13 18:21:54,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12880 states. [2021-07-13 18:21:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12880 to 12880. [2021-07-13 18:21:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12880 states, 12879 states have (on average 3.699044956906592) internal successors, (47640), 12879 states have internal predecessors, (47640), 0 states have call successors, (0), 0 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 18:21:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12880 states to 12880 states and 47640 transitions. [2021-07-13 18:21:54,751 INFO L78 Accepts]: Start accepts. Automaton has 12880 states and 47640 transitions. Word has length 80 [2021-07-13 18:21:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:54,751 INFO L482 AbstractCegarLoop]: Abstraction has 12880 states and 47640 transitions. [2021-07-13 18:21:54,751 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 18:21:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12880 states and 47640 transitions. [2021-07-13 18:21:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:54,766 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:54,766 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 18:21:54,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-13 18:21:54,766 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:54,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:54,766 INFO L82 PathProgramCache]: Analyzing trace with hash -11684839, now seen corresponding path program 11 times [2021-07-13 18:21:54,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:54,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257154708] [2021-07-13 18:21:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:55,132 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2021-07-13 18:21:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:55,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:55,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257154708] [2021-07-13 18:21:55,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257154708] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:55,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:55,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:21:55,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374125267] [2021-07-13 18:21:55,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:21:55,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:55,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:21:55,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:21:55,398 INFO L87 Difference]: Start difference. First operand 12880 states and 47640 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 18:21:56,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:56,531 INFO L93 Difference]: Finished difference Result 14536 states and 53282 transitions. [2021-07-13 18:21:56,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:21:56,531 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 18:21:56,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:56,565 INFO L225 Difference]: With dead ends: 14536 [2021-07-13 18:21:56,565 INFO L226 Difference]: Without dead ends: 12880 [2021-07-13 18:21:56,565 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1076.0ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:21:56,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12880 states. [2021-07-13 18:21:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12880 to 12880. [2021-07-13 18:21:56,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12880 states, 12879 states have (on average 3.6984237906669772) internal successors, (47632), 12879 states have internal predecessors, (47632), 0 states have call successors, (0), 0 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 18:21:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12880 states to 12880 states and 47632 transitions. [2021-07-13 18:21:56,806 INFO L78 Accepts]: Start accepts. Automaton has 12880 states and 47632 transitions. Word has length 80 [2021-07-13 18:21:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:56,806 INFO L482 AbstractCegarLoop]: Abstraction has 12880 states and 47632 transitions. [2021-07-13 18:21:56,806 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 18:21:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 12880 states and 47632 transitions. [2021-07-13 18:21:56,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:21:56,821 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:56,821 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 18:21:56,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-13 18:21:56,821 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:56,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:56,821 INFO L82 PathProgramCache]: Analyzing trace with hash -21546859, now seen corresponding path program 12 times [2021-07-13 18:21:56,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:56,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771159922] [2021-07-13 18:21:56,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:57,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:57,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771159922] [2021-07-13 18:21:57,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771159922] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:57,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:57,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:21:57,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009189044] [2021-07-13 18:21:57,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:21:57,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:57,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:21:57,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:21:57,066 INFO L87 Difference]: Start difference. First operand 12880 states and 47632 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:57,612 INFO L93 Difference]: Finished difference Result 11664 states and 41710 transitions. [2021-07-13 18:21:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:21:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-13 18:21:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:57,636 INFO L225 Difference]: With dead ends: 11664 [2021-07-13 18:21:57,636 INFO L226 Difference]: Without dead ends: 9756 [2021-07-13 18:21:57,636 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 406.7ms TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:21:57,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9756 states. [2021-07-13 18:21:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9756 to 9756. [2021-07-13 18:21:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 9755 states have (on average 3.6302409021014865) internal successors, (35413), 9755 states have internal predecessors, (35413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 35413 transitions. [2021-07-13 18:21:57,800 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 35413 transitions. Word has length 80 [2021-07-13 18:21:57,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:57,800 INFO L482 AbstractCegarLoop]: Abstraction has 9756 states and 35413 transitions. [2021-07-13 18:21:57,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 35413 transitions. [2021-07-13 18:21:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:21:57,812 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:57,812 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 18:21:57,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-13 18:21:57,813 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:57,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:57,813 INFO L82 PathProgramCache]: Analyzing trace with hash 881606360, now seen corresponding path program 1 times [2021-07-13 18:21:57,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:57,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224440728] [2021-07-13 18:21:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:58,391 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 18:21:58,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:58,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224440728] [2021-07-13 18:21:58,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224440728] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:58,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:58,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:21:58,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048321748] [2021-07-13 18:21:58,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:21:58,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:58,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:21:58,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:21:58,392 INFO L87 Difference]: Start difference. First operand 9756 states and 35413 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 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 18:21:59,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:59,140 INFO L93 Difference]: Finished difference Result 11478 states and 41516 transitions. [2021-07-13 18:21:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:21:59,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 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 18:21:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:59,167 INFO L225 Difference]: With dead ends: 11478 [2021-07-13 18:21:59,167 INFO L226 Difference]: Without dead ends: 10686 [2021-07-13 18:21:59,167 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 825.2ms TimeCoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:21:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2021-07-13 18:21:59,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 9798. [2021-07-13 18:21:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 9797 states have (on average 3.6236603041747473) internal successors, (35501), 9797 states have internal predecessors, (35501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:21:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 35501 transitions. [2021-07-13 18:21:59,416 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 35501 transitions. Word has length 82 [2021-07-13 18:21:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:59,416 INFO L482 AbstractCegarLoop]: Abstraction has 9798 states and 35501 transitions. [2021-07-13 18:21:59,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 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 18:21:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 35501 transitions. [2021-07-13 18:21:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:21:59,429 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:59,429 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 18:21:59,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-13 18:21:59,429 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:59,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:59,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1198512482, now seen corresponding path program 1 times [2021-07-13 18:21:59,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:59,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268753642] [2021-07-13 18:21:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:59,782 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 18:21:59,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:59,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268753642] [2021-07-13 18:21:59,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268753642] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:59,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:59,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:21:59,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488731136] [2021-07-13 18:21:59,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:21:59,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:59,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:21:59,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:21:59,784 INFO L87 Difference]: Start difference. First operand 9798 states and 35501 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:22:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:00,542 INFO L93 Difference]: Finished difference Result 10512 states and 37844 transitions. [2021-07-13 18:22:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:22:00,543 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 18:22:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:00,567 INFO L225 Difference]: With dead ends: 10512 [2021-07-13 18:22:00,567 INFO L226 Difference]: Without dead ends: 9744 [2021-07-13 18:22:00,568 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 641.6ms TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:22:00,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-07-13 18:22:00,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-07-13 18:22:00,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9743 states have (on average 3.631427691676075) internal successors, (35381), 9743 states have internal predecessors, (35381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:22:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 35381 transitions. [2021-07-13 18:22:00,845 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 35381 transitions. Word has length 82 [2021-07-13 18:22:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:00,845 INFO L482 AbstractCegarLoop]: Abstraction has 9744 states and 35381 transitions. [2021-07-13 18:22:00,845 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 18:22:00,845 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 35381 transitions. [2021-07-13 18:22:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:00,858 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:00,858 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 18:22:00,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-13 18:22:00,858 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:00,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:00,860 INFO L82 PathProgramCache]: Analyzing trace with hash -44603372, now seen corresponding path program 2 times [2021-07-13 18:22:00,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:00,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781838834] [2021-07-13 18:22:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:01,243 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 18:22:01,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:01,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781838834] [2021-07-13 18:22:01,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781838834] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:01,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:01,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:22:01,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65025078] [2021-07-13 18:22:01,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:22:01,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:01,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:22:01,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:22:01,244 INFO L87 Difference]: Start difference. First operand 9744 states and 35381 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 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 18:22:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:01,963 INFO L93 Difference]: Finished difference Result 11463 states and 41479 transitions. [2021-07-13 18:22:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:22:01,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 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 18:22:01,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:01,989 INFO L225 Difference]: With dead ends: 11463 [2021-07-13 18:22:01,989 INFO L226 Difference]: Without dead ends: 10671 [2021-07-13 18:22:01,989 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 603.6ms TimeCoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:22:02,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10671 states. [2021-07-13 18:22:02,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10671 to 9783. [2021-07-13 18:22:02,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9783 states, 9782 states have (on average 3.625434471478225) internal successors, (35464), 9782 states have internal predecessors, (35464), 0 states have call successors, (0), 0 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 18:22:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9783 states to 9783 states and 35464 transitions. [2021-07-13 18:22:02,287 INFO L78 Accepts]: Start accepts. Automaton has 9783 states and 35464 transitions. Word has length 82 [2021-07-13 18:22:02,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:02,287 INFO L482 AbstractCegarLoop]: Abstraction has 9783 states and 35464 transitions. [2021-07-13 18:22:02,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 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 18:22:02,287 INFO L276 IsEmpty]: Start isEmpty. Operand 9783 states and 35464 transitions. [2021-07-13 18:22:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:02,300 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:02,300 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 18:22:02,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-13 18:22:02,300 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:02,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:02,301 INFO L82 PathProgramCache]: Analyzing trace with hash 272302750, now seen corresponding path program 2 times [2021-07-13 18:22:02,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:02,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115591394] [2021-07-13 18:22:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:22:02,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:02,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115591394] [2021-07-13 18:22:02,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115591394] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:02,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:02,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:22:02,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774646523] [2021-07-13 18:22:02,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:22:02,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:02,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:22:02,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:22:02,644 INFO L87 Difference]: Start difference. First operand 9783 states and 35464 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 18:22:03,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:03,528 INFO L93 Difference]: Finished difference Result 10548 states and 37919 transitions. [2021-07-13 18:22:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:22:03,529 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 18:22:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:03,553 INFO L225 Difference]: With dead ends: 10548 [2021-07-13 18:22:03,553 INFO L226 Difference]: Without dead ends: 9792 [2021-07-13 18:22:03,554 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 724.3ms TimeCoverageRelationStatistics Valid=142, Invalid=1118, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:22:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9792 states. [2021-07-13 18:22:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9792 to 9792. [2021-07-13 18:22:03,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.624246757226024) internal successors, (35485), 9791 states have internal predecessors, (35485), 0 states have call successors, (0), 0 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 18:22:03,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 35485 transitions. [2021-07-13 18:22:03,721 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 35485 transitions. Word has length 82 [2021-07-13 18:22:03,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:03,721 INFO L482 AbstractCegarLoop]: Abstraction has 9792 states and 35485 transitions. [2021-07-13 18:22:03,721 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 18:22:03,721 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 35485 transitions. [2021-07-13 18:22:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:03,733 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:03,733 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 18:22:03,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-13 18:22:03,734 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:03,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:03,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2135349348, now seen corresponding path program 3 times [2021-07-13 18:22:03,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:03,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896594052] [2021-07-13 18:22:03,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:22:04,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:04,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896594052] [2021-07-13 18:22:04,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896594052] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:04,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:04,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:22:04,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356847912] [2021-07-13 18:22:04,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:22:04,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:04,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:22:04,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:22:04,126 INFO L87 Difference]: Start difference. First operand 9792 states and 35485 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 18:22:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:04,928 INFO L93 Difference]: Finished difference Result 11682 states and 42139 transitions. [2021-07-13 18:22:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:22:04,928 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 18:22:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:04,954 INFO L225 Difference]: With dead ends: 11682 [2021-07-13 18:22:04,954 INFO L226 Difference]: Without dead ends: 10890 [2021-07-13 18:22:04,954 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 668.5ms TimeCoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:22:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10890 states. [2021-07-13 18:22:05,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10890 to 9771. [2021-07-13 18:22:05,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9771 states, 9770 states have (on average 3.6275332650972363) internal successors, (35441), 9770 states have internal predecessors, (35441), 0 states have call successors, (0), 0 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 18:22:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9771 states to 9771 states and 35441 transitions. [2021-07-13 18:22:05,128 INFO L78 Accepts]: Start accepts. Automaton has 9771 states and 35441 transitions. Word has length 82 [2021-07-13 18:22:05,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:05,128 INFO L482 AbstractCegarLoop]: Abstraction has 9771 states and 35441 transitions. [2021-07-13 18:22:05,129 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 18:22:05,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9771 states and 35441 transitions. [2021-07-13 18:22:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:05,141 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:05,141 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 18:22:05,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-13 18:22:05,142 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:05,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1818443226, now seen corresponding path program 3 times [2021-07-13 18:22:05,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:05,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758773526] [2021-07-13 18:22:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:05,819 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 18:22:05,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:05,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758773526] [2021-07-13 18:22:05,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758773526] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:05,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:05,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:22:05,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631701772] [2021-07-13 18:22:05,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:22:05,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:05,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:22:05,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:22:05,820 INFO L87 Difference]: Start difference. First operand 9771 states and 35441 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 18:22:07,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:07,156 INFO L93 Difference]: Finished difference Result 10584 states and 38036 transitions. [2021-07-13 18:22:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:22:07,156 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 18:22:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:07,180 INFO L225 Difference]: With dead ends: 10584 [2021-07-13 18:22:07,180 INFO L226 Difference]: Without dead ends: 9831 [2021-07-13 18:22:07,180 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1342.8ms TimeCoverageRelationStatistics Valid=184, Invalid=1622, Unknown=0, NotChecked=0, Total=1806 [2021-07-13 18:22:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9831 states. [2021-07-13 18:22:07,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9831 to 9816. [2021-07-13 18:22:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9816 states, 9815 states have (on average 3.623433520122262) internal successors, (35564), 9815 states have internal predecessors, (35564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:22:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9816 states to 9816 states and 35564 transitions. [2021-07-13 18:22:07,356 INFO L78 Accepts]: Start accepts. Automaton has 9816 states and 35564 transitions. Word has length 82 [2021-07-13 18:22:07,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:07,356 INFO L482 AbstractCegarLoop]: Abstraction has 9816 states and 35564 transitions. [2021-07-13 18:22:07,357 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 18:22:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9816 states and 35564 transitions. [2021-07-13 18:22:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:07,369 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:07,369 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 18:22:07,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-13 18:22:07,370 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:07,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1197675922, now seen corresponding path program 4 times [2021-07-13 18:22:07,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:07,370 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295746325] [2021-07-13 18:22:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:07,826 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 18:22:07,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:07,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295746325] [2021-07-13 18:22:07,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295746325] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:07,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:07,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 18:22:07,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422248465] [2021-07-13 18:22:07,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 18:22:07,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:07,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 18:22:07,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:22:07,827 INFO L87 Difference]: Start difference. First operand 9816 states and 35564 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 18:22:08,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:08,831 INFO L93 Difference]: Finished difference Result 7794 states and 27757 transitions. [2021-07-13 18:22:08,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:22:08,831 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 18:22:08,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:08,847 INFO L225 Difference]: With dead ends: 7794 [2021-07-13 18:22:08,847 INFO L226 Difference]: Without dead ends: 7002 [2021-07-13 18:22:08,847 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 898.4ms TimeCoverageRelationStatistics Valid=195, Invalid=1365, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:22:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2021-07-13 18:22:08,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 6072. [2021-07-13 18:22:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6072 states, 6071 states have (on average 3.564322187448526) internal successors, (21639), 6071 states have internal predecessors, (21639), 0 states have call successors, (0), 0 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 18:22:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6072 states to 6072 states and 21639 transitions. [2021-07-13 18:22:08,944 INFO L78 Accepts]: Start accepts. Automaton has 6072 states and 21639 transitions. Word has length 82 [2021-07-13 18:22:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:08,944 INFO L482 AbstractCegarLoop]: Abstraction has 6072 states and 21639 transitions. [2021-07-13 18:22:08,944 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 18:22:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6072 states and 21639 transitions. [2021-07-13 18:22:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:08,951 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:08,951 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 18:22:08,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-07-13 18:22:08,952 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:08,952 INFO L82 PathProgramCache]: Analyzing trace with hash -880769800, now seen corresponding path program 4 times [2021-07-13 18:22:08,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:08,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270617085] [2021-07-13 18:22:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:09,607 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 18:22:09,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:09,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270617085] [2021-07-13 18:22:09,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270617085] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:09,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:09,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:22:09,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124409041] [2021-07-13 18:22:09,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:22:09,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:09,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:22:09,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:22:09,608 INFO L87 Difference]: Start difference. First operand 6072 states and 21639 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 18:22:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:10,629 INFO L93 Difference]: Finished difference Result 7488 states and 26287 transitions. [2021-07-13 18:22:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:22:10,630 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 18:22:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:10,643 INFO L225 Difference]: With dead ends: 7488 [2021-07-13 18:22:10,643 INFO L226 Difference]: Without dead ends: 6048 [2021-07-13 18:22:10,643 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1120.5ms TimeCoverageRelationStatistics Valid=196, Invalid=1526, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 18:22:10,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2021-07-13 18:22:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 6036. [2021-07-13 18:22:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6036 states, 6035 states have (on average 3.5557580778790387) internal successors, (21459), 6035 states have internal predecessors, (21459), 0 states have call successors, (0), 0 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 18:22:10,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6036 states to 6036 states and 21459 transitions. [2021-07-13 18:22:10,734 INFO L78 Accepts]: Start accepts. Automaton has 6036 states and 21459 transitions. Word has length 82 [2021-07-13 18:22:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:10,734 INFO L482 AbstractCegarLoop]: Abstraction has 6036 states and 21459 transitions. [2021-07-13 18:22:10,734 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 18:22:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6036 states and 21459 transitions. [2021-07-13 18:22:10,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:10,741 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:10,741 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 18:22:10,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-07-13 18:22:10,741 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:10,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:10,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1753164022, now seen corresponding path program 5 times [2021-07-13 18:22:10,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:10,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578852908] [2021-07-13 18:22:10,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:11,416 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 18:22:11,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:11,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578852908] [2021-07-13 18:22:11,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578852908] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:11,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:11,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:22:11,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671061700] [2021-07-13 18:22:11,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:22:11,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:11,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:22:11,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:22:11,418 INFO L87 Difference]: Start difference. First operand 6036 states and 21459 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 18:22:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:12,509 INFO L93 Difference]: Finished difference Result 7464 states and 26217 transitions. [2021-07-13 18:22:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:22:12,509 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 18:22:12,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:12,523 INFO L225 Difference]: With dead ends: 7464 [2021-07-13 18:22:12,523 INFO L226 Difference]: Without dead ends: 6108 [2021-07-13 18:22:12,523 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1170.3ms TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:22:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2021-07-13 18:22:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 6096. [2021-07-13 18:22:12,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6096 states, 6095 states have (on average 3.550943396226415) internal successors, (21643), 6095 states have internal predecessors, (21643), 0 states have call successors, (0), 0 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 18:22:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6096 states to 6096 states and 21643 transitions. [2021-07-13 18:22:12,615 INFO L78 Accepts]: Start accepts. Automaton has 6096 states and 21643 transitions. Word has length 82 [2021-07-13 18:22:12,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:12,615 INFO L482 AbstractCegarLoop]: Abstraction has 6096 states and 21643 transitions. [2021-07-13 18:22:12,615 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 18:22:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6096 states and 21643 transitions. [2021-07-13 18:22:12,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:12,622 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:12,622 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 18:22:12,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-07-13 18:22:12,622 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:12,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1652709930, now seen corresponding path program 6 times [2021-07-13 18:22:12,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:12,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520868913] [2021-07-13 18:22:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:13,169 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 18:22:13,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:13,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520868913] [2021-07-13 18:22:13,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520868913] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:13,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:13,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-13 18:22:13,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211130791] [2021-07-13 18:22:13,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-13 18:22:13,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:13,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-13 18:22:13,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-07-13 18:22:13,171 INFO L87 Difference]: Start difference. First operand 6096 states and 21643 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 18:22:14,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:14,332 INFO L93 Difference]: Finished difference Result 6072 states and 21020 transitions. [2021-07-13 18:22:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:22:14,333 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 18:22:14,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:14,341 INFO L225 Difference]: With dead ends: 6072 [2021-07-13 18:22:14,341 INFO L226 Difference]: Without dead ends: 4032 [2021-07-13 18:22:14,342 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1116.4ms TimeCoverageRelationStatistics Valid=237, Invalid=1833, Unknown=0, NotChecked=0, Total=2070 [2021-07-13 18:22:14,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2021-07-13 18:22:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4032. [2021-07-13 18:22:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4031 states have (on average 3.5102952121061772) internal successors, (14150), 4031 states have internal predecessors, (14150), 0 states have call successors, (0), 0 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 18:22:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 14150 transitions. [2021-07-13 18:22:14,396 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 14150 transitions. Word has length 82 [2021-07-13 18:22:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:14,396 INFO L482 AbstractCegarLoop]: Abstraction has 4032 states and 14150 transitions. [2021-07-13 18:22:14,396 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 18:22:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 14150 transitions. [2021-07-13 18:22:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:14,400 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:14,400 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 18:22:14,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-07-13 18:22:14,400 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:14,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:14,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1530938248, now seen corresponding path program 7 times [2021-07-13 18:22:14,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:14,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591048326] [2021-07-13 18:22:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:15,033 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 18:22:15,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:15,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591048326] [2021-07-13 18:22:15,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591048326] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:15,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:15,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:22:15,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343707393] [2021-07-13 18:22:15,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:22:15,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:15,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:22:15,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:22:15,035 INFO L87 Difference]: Start difference. First operand 4032 states and 14150 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 18:22:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:16,213 INFO L93 Difference]: Finished difference Result 4833 states and 16698 transitions. [2021-07-13 18:22:16,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:22:16,213 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 18:22:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:16,221 INFO L225 Difference]: With dead ends: 4833 [2021-07-13 18:22:16,221 INFO L226 Difference]: Without dead ends: 3969 [2021-07-13 18:22:16,222 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1259.0ms TimeCoverageRelationStatistics Valid=199, Invalid=1607, Unknown=0, NotChecked=0, Total=1806 [2021-07-13 18:22:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2021-07-13 18:22:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3942. [2021-07-13 18:22:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 3941 states have (on average 3.5272773407764526) internal successors, (13901), 3941 states have internal predecessors, (13901), 0 states have call successors, (0), 0 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 18:22:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 13901 transitions. [2021-07-13 18:22:16,276 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 13901 transitions. Word has length 82 [2021-07-13 18:22:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:16,276 INFO L482 AbstractCegarLoop]: Abstraction has 3942 states and 13901 transitions. [2021-07-13 18:22:16,276 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 18:22:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 13901 transitions. [2021-07-13 18:22:16,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:16,280 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:16,280 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 18:22:16,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-07-13 18:22:16,280 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:16,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:16,281 INFO L82 PathProgramCache]: Analyzing trace with hash 377345506, now seen corresponding path program 8 times [2021-07-13 18:22:16,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:16,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816094974] [2021-07-13 18:22:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:16,630 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 18:22:16,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:16,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816094974] [2021-07-13 18:22:16,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816094974] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:16,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:16,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:22:16,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658951979] [2021-07-13 18:22:16,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:22:16,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:16,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:22:16,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:22:16,631 INFO L87 Difference]: Start difference. First operand 3942 states and 13901 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 18:22:17,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:17,365 INFO L93 Difference]: Finished difference Result 4695 states and 16327 transitions. [2021-07-13 18:22:17,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:22:17,365 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 18:22:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:17,373 INFO L225 Difference]: With dead ends: 4695 [2021-07-13 18:22:17,373 INFO L226 Difference]: Without dead ends: 3930 [2021-07-13 18:22:17,373 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 671.4ms TimeCoverageRelationStatistics Valid=142, Invalid=1118, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:22:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2021-07-13 18:22:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3930. [2021-07-13 18:22:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3930 states, 3929 states have (on average 3.532196487655892) internal successors, (13878), 3929 states have internal predecessors, (13878), 0 states have call successors, (0), 0 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 18:22:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 13878 transitions. [2021-07-13 18:22:17,425 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 13878 transitions. Word has length 82 [2021-07-13 18:22:17,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:17,425 INFO L482 AbstractCegarLoop]: Abstraction has 3930 states and 13878 transitions. [2021-07-13 18:22:17,425 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 18:22:17,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 13878 transitions. [2021-07-13 18:22:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-07-13 18:22:17,429 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:22:17,429 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 18:22:17,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-07-13 18:22:17,429 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:22:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:22:17,429 INFO L82 PathProgramCache]: Analyzing trace with hash -69466482, now seen corresponding path program 9 times [2021-07-13 18:22:17,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:22:17,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428107402] [2021-07-13 18:22:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:22:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:22:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:22:17,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:22:17,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428107402] [2021-07-13 18:22:17,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428107402] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:22:17,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:22:17,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 18:22:17,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501314844] [2021-07-13 18:22:17,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 18:22:17,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:22:17,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 18:22:17,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:22:17,875 INFO L87 Difference]: Start difference. First operand 3930 states and 13878 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 18:22:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:22:18,634 INFO L93 Difference]: Finished difference Result 1050 states and 3139 transitions. [2021-07-13 18:22:18,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:22:18,634 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 18:22:18,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:22:18,635 INFO L225 Difference]: With dead ends: 1050 [2021-07-13 18:22:18,635 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 18:22:18,635 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 799.5ms TimeCoverageRelationStatistics Valid=160, Invalid=1246, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:22:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 18:22:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 18:22:18,635 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 18:22:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 18:22:18,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2021-07-13 18:22:18,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:22:18,636 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 18:22:18,636 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 18:22:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 18:22:18,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:22:18,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-07-13 18:22:18,636 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-13 18:22:18,638 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-13 18:22:18,638 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:22:18,638 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:22:18,638 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:22:18,638 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:22:18,638 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:22:18,638 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:22:18,638 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:22:18,638 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread0Thread1of1ForFork4======== [2021-07-13 18:22:18,643 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-07-13 18:22:21,784 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72831 states, 72817 states have (on average 4.225180933023882) internal successors, (307665), 72830 states have internal predecessors, (307665), 0 states have call successors, (0), 0 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 18:22:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 72831 states, 72817 states have (on average 4.225180933023882) internal successors, (307665), 72830 states have internal predecessors, (307665), 0 states have call successors, (0), 0 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 18:22:22,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:22:22,188 INFO L301 ceAbstractionStarter]: Result for error location thread0Thread1of1ForFork4 was SAFE (2/2) [2021-07-13 18:22:22,188 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:22:22,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:22:22 BasicIcfg [2021-07-13 18:22:22,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:22:22,192 INFO L168 Benchmark]: Toolchain (without parser) took 266594.55 ms. Allocated memory was 195.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 157.3 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 766.7 MB. Max. memory is 8.0 GB. [2021-07-13 18:22:22,192 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 195.0 MB. Free memory is still 176.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:22:22,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.46 ms. Allocated memory is still 195.0 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-07-13 18:22:22,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 195.0 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:22:22,192 INFO L168 Benchmark]: Boogie Preprocessor took 15.48 ms. Allocated memory is still 195.0 MB. Free memory was 153.7 MB in the beginning and 152.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:22:22,192 INFO L168 Benchmark]: RCFGBuilder took 325.64 ms. Allocated memory is still 195.0 MB. Free memory was 152.2 MB in the beginning and 121.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-07-13 18:22:22,192 INFO L168 Benchmark]: TraceAbstraction took 265791.98 ms. Allocated memory was 195.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 121.2 MB in the beginning and 7.2 GB in the end (delta: -7.1 GB). Peak memory consumption was 730.8 MB. Max. memory is 8.0 GB. [2021-07-13 18:22:22,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 195.0 MB. Free memory is still 176.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 429.46 ms. Allocated memory is still 195.0 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 195.0 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.48 ms. Allocated memory is still 195.0 MB. Free memory was 153.7 MB in the beginning and 152.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 325.64 ms. Allocated memory is still 195.0 MB. Free memory was 152.2 MB in the beginning and 121.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 265791.98 ms. Allocated memory was 195.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 121.2 MB in the beginning and 7.2 GB in the end (delta: -7.1 GB). Peak memory consumption was 730.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1123]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 222 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 262024.4ms, OverallIterations: 68, TraceHistogramMax: 1, EmptinessCheckTime: 5392.4ms, AutomataDifference: 112527.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3983.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13560 SDtfs, 22570 SDslu, 118979 SDs, 0 SdLazy, 53659 SolverSat, 3372 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26069.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2381 GetRequests, 160 SyntacticMatches, 195 SemanticMatches, 2026 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13090 ImplicationChecksByTransitivity, 53088.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=88725occurred in iteration=0, InterpolantAutomatonStates: 1453, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 109664.0ms AutomataMinimizationTime, 68 MinimizatonAttempts, 307856 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 143.6ms SsaConstructionTime, 801.4ms SatisfiabilityAnalysisTime, 28500.0ms InterpolantComputationTime, 4971 NumberOfCodeBlocks, 4971 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 4903 ConstructedInterpolants, 0 QuantifiedInterpolants, 107441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 68 InterpolantComputations, 68 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread0Thread1of1ForFork4 with 1 thread instances CFG has 11 procedures, 222 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3549.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 403.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3145.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=72831occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...