/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 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 15:20:02,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 15:20:02,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 15:20:02,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-12 15:20:02,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-12 15:20:02,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-12 15:20:02,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-12 15:20:02,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-12 15:20:02,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-12 15:20:02,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-12 15:20:02,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-12 15:20:02,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-12 15:20:02,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 15:20:02,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 15:20:02,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 15:20:02,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 15:20:02,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 15:20:02,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 15:20:02,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 15:20:02,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 15:20:02,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 15:20:02,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 15:20:02,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 15:20:02,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 15:20:02,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-12 15:20:02,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 15:20:02,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 15:20:02,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 15:20:02,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-12 15:20:02,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 15:20:02,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 15:20:02,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 15:20:02,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 15:20:02,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 15:20:02,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 15:20:02,492 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 15:20:02,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 15:20:02,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 15:20:02,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 15:20:02,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 15:20:02,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 15:20:02,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 15:20:02,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 15:20:02,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 15:20:02,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 15:20:02,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 15:20:02,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 15:20:02,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 15:20:02,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 15:20:02,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 15:20:02,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 15:20:02,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 15:20:02,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 15:20:02,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 15:20:02,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 15:20:02,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 15:20:02,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 15:20:02,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 15:20:02,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 15:20:02,836 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 15:20:02,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-06-12 15:20:02,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e3fcbf1/4046f9fb6da04c3bbddba640c16053a0/FLAG2c1735a02 [2021-06-12 15:20:03,409 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 15:20:03,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-06-12 15:20:03,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e3fcbf1/4046f9fb6da04c3bbddba640c16053a0/FLAG2c1735a02 [2021-06-12 15:20:03,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e3fcbf1/4046f9fb6da04c3bbddba640c16053a0 [2021-06-12 15:20:03,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 15:20:03,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 15:20:03,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 15:20:03,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 15:20:03,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 15:20:03,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 03:20:03" (1/1) ... [2021-06-12 15:20:03,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a66a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:03, skipping insertion in model container [2021-06-12 15:20:03,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 03:20:03" (1/1) ... [2021-06-12 15:20:03,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 15:20:03,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 15:20:03,987 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-12 15:20:04,128 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2021-06-12 15:20:04,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 15:20:04,149 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 15:20:04,161 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-12 15:20:04,179 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2021-06-12 15:20:04,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 15:20:04,340 INFO L208 MainTranslator]: Completed translation [2021-06-12 15:20:04,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04 WrapperNode [2021-06-12 15:20:04,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 15:20:04,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 15:20:04,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 15:20:04,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 15:20:04,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 15:20:04,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 15:20:04,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 15:20:04,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 15:20:04,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... [2021-06-12 15:20:04,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 15:20:04,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 15:20:04,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 15:20:04,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 15:20:04,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 15:20:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 15:20:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 15:20:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 15:20:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 15:20:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 15:20:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-06-12 15:20:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-06-12 15:20:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-12 15:20:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-12 15:20:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-12 15:20:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-12 15:20:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-12 15:20:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-12 15:20:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 15:20:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-12 15:20:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 15:20:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 15:20:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 15:20:04,499 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 15:20:04,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 15:20:04,925 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-12 15:20:04,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 03:20:04 BoogieIcfgContainer [2021-06-12 15:20:04,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 15:20:04,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 15:20:04,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 15:20:04,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 15:20:04,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 03:20:03" (1/3) ... [2021-06-12 15:20:04,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7856ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 03:20:04, skipping insertion in model container [2021-06-12 15:20:04,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 03:20:04" (2/3) ... [2021-06-12 15:20:04,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7856ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 03:20:04, skipping insertion in model container [2021-06-12 15:20:04,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 03:20:04" (3/3) ... [2021-06-12 15:20:04,934 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2021-06-12 15:20:04,938 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 15:20:04,939 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 15:20:04,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 15:20:04,939 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 15:20:04,983 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,983 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,983 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,984 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,984 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,984 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,984 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,984 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,984 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,985 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,985 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,985 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,985 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,985 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,985 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,986 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,987 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,987 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,987 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,988 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,988 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,988 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,988 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,988 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,988 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,989 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,990 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,990 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,990 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,990 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,990 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,991 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,992 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,993 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,993 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,993 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,993 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,993 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,993 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,994 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,994 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,994 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,994 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,994 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,994 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,995 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,995 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,995 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,995 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,995 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,995 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,996 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,997 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,997 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,999 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:04,999 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,000 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,000 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,000 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,000 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,000 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,000 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,001 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,002 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,003 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,004 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,005 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,005 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,006 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,011 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,011 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,011 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,011 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,011 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,012 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,012 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,012 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,012 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,012 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,013 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,014 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,015 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,016 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,017 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,018 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,022 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,022 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,022 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,029 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,034 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,035 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,035 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,036 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,036 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,037 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,037 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,043 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,043 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,046 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,046 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,046 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,046 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,052 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,052 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,054 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,054 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,054 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,054 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,054 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,055 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,056 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,059 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,060 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,060 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,060 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,061 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,062 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,064 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,064 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,064 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,066 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,066 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,066 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,066 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,067 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,068 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,070 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,070 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,070 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,070 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 15:20:05,246 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-06-12 15:20:05,265 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-12 15:20:05,282 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:20:05,282 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:20:05,282 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:20:05,282 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:20:05,282 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:20:05,283 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:20:05,283 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:20:05,283 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread0======== [2021-06-12 15:20:05,296 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-06-12 15:20:14,184 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:15,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 15:20:15,386 INFO L301 ceAbstractionStarter]: Result for error location thread0 was SAFE (1/3) [2021-06-12 15:20:15,397 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 15:20:15,405 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 15:20:15,405 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 15:20:15,405 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 15:20:15,405 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 15:20:15,405 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 15:20:15,405 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 15:20:15,405 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 15:20:15,405 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 15:20:15,424 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-06-12 15:20:23,439 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-12 15:20:23,592 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:23,593 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:23,593 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:23,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:23,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1057393115, now seen corresponding path program 1 times [2021-06-12 15:20:23,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:23,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841750100] [2021-06-12 15:20:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:23,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:23,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841750100] [2021-06-12 15:20:23,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841750100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:23,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:23,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:20:23,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656731976] [2021-06-12 15:20:23,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:20:23,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:23,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:20:23,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:20:24,050 INFO L87 Difference]: Start difference. First operand has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:25,758 INFO L93 Difference]: Finished difference Result 125143 states and 525783 transitions. [2021-06-12 15:20:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 15:20:25,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-12 15:20:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:26,409 INFO L225 Difference]: With dead ends: 125143 [2021-06-12 15:20:26,409 INFO L226 Difference]: Without dead ends: 58395 [2021-06-12 15:20:26,410 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 39.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-12 15:20:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58395 states. [2021-06-12 15:20:28,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58395 to 58395. [2021-06-12 15:20:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58395 states, 58392 states have (on average 4.310265104808878) internal successors, (251685), 58394 states have internal predecessors, (251685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58395 states to 58395 states and 251685 transitions. [2021-06-12 15:20:29,377 INFO L78 Accepts]: Start accepts. Automaton has 58395 states and 251685 transitions. Word has length 43 [2021-06-12 15:20:29,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:29,377 INFO L482 AbstractCegarLoop]: Abstraction has 58395 states and 251685 transitions. [2021-06-12 15:20:29,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 58395 states and 251685 transitions. [2021-06-12 15:20:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-12 15:20:29,379 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:29,380 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:29,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 15:20:29,380 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:29,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:29,381 INFO L82 PathProgramCache]: Analyzing trace with hash 635082616, now seen corresponding path program 1 times [2021-06-12 15:20:29,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:29,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412551958] [2021-06-12 15:20:29,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:29,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:29,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412551958] [2021-06-12 15:20:29,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412551958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:29,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:29,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 15:20:29,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130919040] [2021-06-12 15:20:29,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 15:20:29,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:29,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 15:20:29,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-12 15:20:29,776 INFO L87 Difference]: Start difference. First operand 58395 states and 251685 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:31,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:31,075 INFO L93 Difference]: Finished difference Result 66911 states and 291720 transitions. [2021-06-12 15:20:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 15:20:31,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-12 15:20:31,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:31,588 INFO L225 Difference]: With dead ends: 66911 [2021-06-12 15:20:31,588 INFO L226 Difference]: Without dead ends: 66911 [2021-06-12 15:20:31,590 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 261.2ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-12 15:20:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66911 states. [2021-06-12 15:20:33,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66911 to 58422. [2021-06-12 15:20:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58422 states, 58419 states have (on average 4.309009055273113) internal successors, (251728), 58421 states have internal predecessors, (251728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58422 states to 58422 states and 251728 transitions. [2021-06-12 15:20:34,271 INFO L78 Accepts]: Start accepts. Automaton has 58422 states and 251728 transitions. Word has length 45 [2021-06-12 15:20:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:34,272 INFO L482 AbstractCegarLoop]: Abstraction has 58422 states and 251728 transitions. [2021-06-12 15:20:34,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 58422 states and 251728 transitions. [2021-06-12 15:20:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-12 15:20:34,275 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:34,275 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:34,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 15:20:34,276 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:34,276 INFO L82 PathProgramCache]: Analyzing trace with hash 520020404, now seen corresponding path program 2 times [2021-06-12 15:20:34,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:34,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358715794] [2021-06-12 15:20:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:34,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:34,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358715794] [2021-06-12 15:20:34,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358715794] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:34,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:34,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 15:20:34,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883705508] [2021-06-12 15:20:34,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 15:20:34,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:34,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 15:20:34,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-12 15:20:34,590 INFO L87 Difference]: Start difference. First operand 58422 states and 251728 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:35,497 INFO L93 Difference]: Finished difference Result 66936 states and 291761 transitions. [2021-06-12 15:20:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-12 15:20:35,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-12 15:20:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:35,795 INFO L225 Difference]: With dead ends: 66936 [2021-06-12 15:20:35,795 INFO L226 Difference]: Without dead ends: 66936 [2021-06-12 15:20:35,796 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 224.0ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:20:36,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66936 states. [2021-06-12 15:20:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66936 to 58420. [2021-06-12 15:20:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-06-12 15:20:37,849 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-06-12 15:20:37,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:37,850 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-06-12 15:20:37,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-06-12 15:20:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-12 15:20:37,850 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:37,850 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:37,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 15:20:37,851 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:37,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:37,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1800642158, now seen corresponding path program 3 times [2021-06-12 15:20:37,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:37,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723724518] [2021-06-12 15:20:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:38,357 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2021-06-12 15:20:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:38,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:38,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723724518] [2021-06-12 15:20:38,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723724518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:38,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:38,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-12 15:20:38,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780366567] [2021-06-12 15:20:38,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-12 15:20:38,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:38,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-12 15:20:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:20:38,361 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:39,657 INFO L93 Difference]: Finished difference Result 66933 states and 291758 transitions. [2021-06-12 15:20:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-12 15:20:39,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-12 15:20:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:39,933 INFO L225 Difference]: With dead ends: 66933 [2021-06-12 15:20:39,933 INFO L226 Difference]: Without dead ends: 66933 [2021-06-12 15:20:39,934 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 624.6ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-06-12 15:20:40,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66933 states. [2021-06-12 15:20:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66933 to 58420. [2021-06-12 15:20:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:42,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-06-12 15:20:42,311 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-06-12 15:20:42,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:42,312 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-06-12 15:20:42,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:42,312 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-06-12 15:20:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-12 15:20:42,312 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:42,312 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:42,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 15:20:42,312 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:42,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1122940590, now seen corresponding path program 4 times [2021-06-12 15:20:42,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:42,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378569499] [2021-06-12 15:20:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:42,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:42,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378569499] [2021-06-12 15:20:42,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378569499] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:42,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:42,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-12 15:20:42,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146795531] [2021-06-12 15:20:42,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-12 15:20:42,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:42,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-12 15:20:42,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:20:42,541 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:43,717 INFO L93 Difference]: Finished difference Result 66894 states and 291684 transitions. [2021-06-12 15:20:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 15:20:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-12 15:20:43,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:44,200 INFO L225 Difference]: With dead ends: 66894 [2021-06-12 15:20:44,200 INFO L226 Difference]: Without dead ends: 66894 [2021-06-12 15:20:44,201 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 335.3ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-06-12 15:20:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66894 states. [2021-06-12 15:20:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66894 to 58347. [2021-06-12 15:20:45,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58347 states, 58345 states have (on average 4.312228982774873) internal successors, (251597), 58346 states have internal predecessors, (251597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:45,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58347 states to 58347 states and 251597 transitions. [2021-06-12 15:20:45,978 INFO L78 Accepts]: Start accepts. Automaton has 58347 states and 251597 transitions. Word has length 45 [2021-06-12 15:20:45,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:45,978 INFO L482 AbstractCegarLoop]: Abstraction has 58347 states and 251597 transitions. [2021-06-12 15:20:45,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:45,979 INFO L276 IsEmpty]: Start isEmpty. Operand 58347 states and 251597 transitions. [2021-06-12 15:20:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-12 15:20:45,981 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:45,981 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:45,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 15:20:45,981 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:45,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:45,982 INFO L82 PathProgramCache]: Analyzing trace with hash 913059882, now seen corresponding path program 1 times [2021-06-12 15:20:45,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:45,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090157590] [2021-06-12 15:20:45,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:46,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:46,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090157590] [2021-06-12 15:20:46,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090157590] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:46,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:46,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 15:20:46,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167404987] [2021-06-12 15:20:46,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 15:20:46,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:46,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 15:20:46,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-12 15:20:46,030 INFO L87 Difference]: Start difference. First operand 58347 states and 251597 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:47,472 INFO L93 Difference]: Finished difference Result 106077 states and 449265 transitions. [2021-06-12 15:20:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 15:20:47,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-12 15:20:47,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:48,139 INFO L225 Difference]: With dead ends: 106077 [2021-06-12 15:20:48,140 INFO L226 Difference]: Without dead ends: 80559 [2021-06-12 15:20:48,140 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-12 15:20:48,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80559 states. [2021-06-12 15:20:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80559 to 60189. [2021-06-12 15:20:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60189 states, 60187 states have (on average 4.185073188562314) internal successors, (251887), 60188 states have internal predecessors, (251887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60189 states to 60189 states and 251887 transitions. [2021-06-12 15:20:50,742 INFO L78 Accepts]: Start accepts. Automaton has 60189 states and 251887 transitions. Word has length 58 [2021-06-12 15:20:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:50,743 INFO L482 AbstractCegarLoop]: Abstraction has 60189 states and 251887 transitions. [2021-06-12 15:20:50,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 60189 states and 251887 transitions. [2021-06-12 15:20:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 15:20:50,774 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:50,774 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:50,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 15:20:50,774 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:50,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:50,775 INFO L82 PathProgramCache]: Analyzing trace with hash -656407791, now seen corresponding path program 1 times [2021-06-12 15:20:50,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:50,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575193900] [2021-06-12 15:20:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:51,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:51,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575193900] [2021-06-12 15:20:51,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575193900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:51,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:51,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 15:20:51,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420811514] [2021-06-12 15:20:51,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 15:20:51,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:51,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 15:20:51,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-12 15:20:51,080 INFO L87 Difference]: Start difference. First operand 60189 states and 251887 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:52,075 INFO L93 Difference]: Finished difference Result 69158 states and 289783 transitions. [2021-06-12 15:20:52,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-12 15:20:52,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-12 15:20:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:52,297 INFO L225 Difference]: With dead ends: 69158 [2021-06-12 15:20:52,297 INFO L226 Difference]: Without dead ends: 69086 [2021-06-12 15:20:52,297 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 241.9ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-12 15:20:52,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69086 states. [2021-06-12 15:20:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69086 to 64538. [2021-06-12 15:20:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64538 states, 64536 states have (on average 4.210068798809966) internal successors, (271701), 64537 states have internal predecessors, (271701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:54,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 271701 transitions. [2021-06-12 15:20:54,508 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 271701 transitions. Word has length 63 [2021-06-12 15:20:54,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:54,509 INFO L482 AbstractCegarLoop]: Abstraction has 64538 states and 271701 transitions. [2021-06-12 15:20:54,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:54,509 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 271701 transitions. [2021-06-12 15:20:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 15:20:54,553 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:54,553 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:54,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 15:20:54,553 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:54,554 INFO L82 PathProgramCache]: Analyzing trace with hash 649179835, now seen corresponding path program 2 times [2021-06-12 15:20:54,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:54,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145767853] [2021-06-12 15:20:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:54,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:54,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145767853] [2021-06-12 15:20:54,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145767853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:54,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:54,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 15:20:54,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831672397] [2021-06-12 15:20:54,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 15:20:54,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:54,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 15:20:54,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-12 15:20:54,688 INFO L87 Difference]: Start difference. First operand 64538 states and 271701 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:55,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:55,642 INFO L93 Difference]: Finished difference Result 88074 states and 363236 transitions. [2021-06-12 15:20:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 15:20:55,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-12 15:20:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:55,931 INFO L225 Difference]: With dead ends: 88074 [2021-06-12 15:20:55,931 INFO L226 Difference]: Without dead ends: 85032 [2021-06-12 15:20:55,931 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 101.0ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-06-12 15:20:56,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85032 states. [2021-06-12 15:20:57,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85032 to 64274. [2021-06-12 15:20:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64274 states, 64272 states have (on average 4.214385735623599) internal successors, (270867), 64273 states have internal predecessors, (270867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64274 states to 64274 states and 270867 transitions. [2021-06-12 15:20:58,311 INFO L78 Accepts]: Start accepts. Automaton has 64274 states and 270867 transitions. Word has length 63 [2021-06-12 15:20:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:20:58,311 INFO L482 AbstractCegarLoop]: Abstraction has 64274 states and 270867 transitions. [2021-06-12 15:20:58,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 64274 states and 270867 transitions. [2021-06-12 15:20:58,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-12 15:20:58,334 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:20:58,334 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:20:58,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 15:20:58,334 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:20:58,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:20:58,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1880546200, now seen corresponding path program 1 times [2021-06-12 15:20:58,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:20:58,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725517065] [2021-06-12 15:20:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:20:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:20:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:20:58,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:20:58,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725517065] [2021-06-12 15:20:58,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725517065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:20:58,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:20:58,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 15:20:58,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253783118] [2021-06-12 15:20:58,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 15:20:58,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:20:58,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 15:20:58,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 15:20:58,413 INFO L87 Difference]: Start difference. First operand 64274 states and 270867 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:20:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:20:59,397 INFO L93 Difference]: Finished difference Result 105424 states and 431849 transitions. [2021-06-12 15:20:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 15:20:59,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-12 15:20:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:20:59,648 INFO L225 Difference]: With dead ends: 105424 [2021-06-12 15:20:59,648 INFO L226 Difference]: Without dead ends: 74071 [2021-06-12 15:20:59,648 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 69.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:21:00,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74071 states. [2021-06-12 15:21:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74071 to 66493. [2021-06-12 15:21:01,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66493 states, 66492 states have (on average 4.090507128677134) internal successors, (271986), 66492 states have internal predecessors, (271986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:01,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66493 states to 66493 states and 271986 transitions. [2021-06-12 15:21:01,803 INFO L78 Accepts]: Start accepts. Automaton has 66493 states and 271986 transitions. Word has length 64 [2021-06-12 15:21:01,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:01,804 INFO L482 AbstractCegarLoop]: Abstraction has 66493 states and 271986 transitions. [2021-06-12 15:21:01,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:01,804 INFO L276 IsEmpty]: Start isEmpty. Operand 66493 states and 271986 transitions. [2021-06-12 15:21:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 15:21:01,832 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:01,832 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:01,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 15:21:01,832 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:01,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2106951087, now seen corresponding path program 1 times [2021-06-12 15:21:01,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:01,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131641056] [2021-06-12 15:21:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:02,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:02,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131641056] [2021-06-12 15:21:02,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131641056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:02,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:02,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-12 15:21:02,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542828512] [2021-06-12 15:21:02,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-12 15:21:02,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:02,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-12 15:21:02,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-12 15:21:02,076 INFO L87 Difference]: Start difference. First operand 66493 states and 271986 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:03,029 INFO L93 Difference]: Finished difference Result 69911 states and 283080 transitions. [2021-06-12 15:21:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 15:21:03,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-12 15:21:03,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:03,218 INFO L225 Difference]: With dead ends: 69911 [2021-06-12 15:21:03,218 INFO L226 Difference]: Without dead ends: 68849 [2021-06-12 15:21:03,218 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 243.7ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:21:03,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68849 states. [2021-06-12 15:21:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68849 to 66928. [2021-06-12 15:21:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66928 states, 66927 states have (on average 4.075948421414377) internal successors, (272791), 66927 states have internal predecessors, (272791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66928 states to 66928 states and 272791 transitions. [2021-06-12 15:21:05,221 INFO L78 Accepts]: Start accepts. Automaton has 66928 states and 272791 transitions. Word has length 66 [2021-06-12 15:21:05,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:05,221 INFO L482 AbstractCegarLoop]: Abstraction has 66928 states and 272791 transitions. [2021-06-12 15:21:05,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 66928 states and 272791 transitions. [2021-06-12 15:21:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 15:21:05,244 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:05,244 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:05,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 15:21:05,244 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:05,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1725149799, now seen corresponding path program 2 times [2021-06-12 15:21:05,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:05,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749068637] [2021-06-12 15:21:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:05,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:05,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749068637] [2021-06-12 15:21:05,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749068637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:05,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:05,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-12 15:21:05,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193609454] [2021-06-12 15:21:05,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-12 15:21:05,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:05,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-12 15:21:05,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-12 15:21:05,630 INFO L87 Difference]: Start difference. First operand 66928 states and 272791 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:07,472 INFO L93 Difference]: Finished difference Result 75416 states and 306949 transitions. [2021-06-12 15:21:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 15:21:07,472 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-12 15:21:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:08,051 INFO L225 Difference]: With dead ends: 75416 [2021-06-12 15:21:08,051 INFO L226 Difference]: Without dead ends: 74912 [2021-06-12 15:21:08,051 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 527.2ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-06-12 15:21:08,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74912 states. [2021-06-12 15:21:10,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74912 to 70681. [2021-06-12 15:21:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-12 15:21:10,503 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-12 15:21:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:10,503 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-12 15:21:10,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-12 15:21:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 15:21:10,531 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:10,531 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:10,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 15:21:10,532 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:10,532 INFO L82 PathProgramCache]: Analyzing trace with hash 889663663, now seen corresponding path program 3 times [2021-06-12 15:21:10,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:10,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371284281] [2021-06-12 15:21:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:10,961 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-06-12 15:21:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:11,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:11,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371284281] [2021-06-12 15:21:11,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371284281] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:11,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:11,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-12 15:21:11,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615888460] [2021-06-12 15:21:11,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-12 15:21:11,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:11,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-12 15:21:11,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-12 15:21:11,189 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:12,483 INFO L93 Difference]: Finished difference Result 79143 states and 323485 transitions. [2021-06-12 15:21:12,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 15:21:12,484 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-12 15:21:12,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:12,708 INFO L225 Difference]: With dead ends: 79143 [2021-06-12 15:21:12,708 INFO L226 Difference]: Without dead ends: 78639 [2021-06-12 15:21:12,708 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 843.4ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-06-12 15:21:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78639 states. [2021-06-12 15:21:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78639 to 70681. [2021-06-12 15:21:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:14,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-12 15:21:14,902 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-12 15:21:14,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:14,902 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-12 15:21:14,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:14,902 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-12 15:21:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 15:21:14,943 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:14,943 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:14,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 15:21:14,943 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash -2095824755, now seen corresponding path program 4 times [2021-06-12 15:21:14,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:14,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888409156] [2021-06-12 15:21:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:15,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:15,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888409156] [2021-06-12 15:21:15,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888409156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:15,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:15,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-12 15:21:15,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453447544] [2021-06-12 15:21:15,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-12 15:21:15,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:15,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-12 15:21:15,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-06-12 15:21:15,429 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:17,225 INFO L93 Difference]: Finished difference Result 84271 states and 345635 transitions. [2021-06-12 15:21:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-12 15:21:17,225 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-12 15:21:17,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:17,493 INFO L225 Difference]: With dead ends: 84271 [2021-06-12 15:21:17,493 INFO L226 Difference]: Without dead ends: 83767 [2021-06-12 15:21:17,494 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 645.4ms TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2021-06-12 15:21:17,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83767 states. [2021-06-12 15:21:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83767 to 70681. [2021-06-12 15:21:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:19,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-12 15:21:19,719 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-12 15:21:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:19,720 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-12 15:21:19,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-12 15:21:19,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 15:21:19,761 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:19,762 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:19,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-12 15:21:19,762 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:19,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1050727221, now seen corresponding path program 5 times [2021-06-12 15:21:19,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:19,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109138230] [2021-06-12 15:21:19,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:20,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:20,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109138230] [2021-06-12 15:21:20,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109138230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:20,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:20,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-12 15:21:20,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223031518] [2021-06-12 15:21:20,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-12 15:21:20,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:20,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-12 15:21:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-06-12 15:21:20,254 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:22,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:22,020 INFO L93 Difference]: Finished difference Result 79125 states and 323446 transitions. [2021-06-12 15:21:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-12 15:21:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-12 15:21:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:22,524 INFO L225 Difference]: With dead ends: 79125 [2021-06-12 15:21:22,524 INFO L226 Difference]: Without dead ends: 78621 [2021-06-12 15:21:22,525 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 764.1ms TimeCoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 15:21:22,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78621 states. [2021-06-12 15:21:24,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78621 to 70681. [2021-06-12 15:21:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-12 15:21:24,299 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-12 15:21:24,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:24,299 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-12 15:21:24,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:24,299 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-12 15:21:24,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 15:21:24,680 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:24,680 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:24,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-12 15:21:24,681 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:24,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:24,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2140606075, now seen corresponding path program 6 times [2021-06-12 15:21:24,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:24,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370047783] [2021-06-12 15:21:24,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:25,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:25,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370047783] [2021-06-12 15:21:25,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370047783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:25,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:25,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-12 15:21:25,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823663642] [2021-06-12 15:21:25,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 15:21:25,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:25,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 15:21:25,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-06-12 15:21:25,034 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:26,551 INFO L93 Difference]: Finished difference Result 78824 states and 322585 transitions. [2021-06-12 15:21:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-12 15:21:26,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-12 15:21:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:26,798 INFO L225 Difference]: With dead ends: 78824 [2021-06-12 15:21:26,799 INFO L226 Difference]: Without dead ends: 78320 [2021-06-12 15:21:26,799 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 393.9ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-06-12 15:21:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78320 states. [2021-06-12 15:21:28,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78320 to 70342. [2021-06-12 15:21:28,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70342 states, 70341 states have (on average 4.1005956696663395) internal successors, (288440), 70341 states have internal predecessors, (288440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70342 states to 70342 states and 288440 transitions. [2021-06-12 15:21:29,094 INFO L78 Accepts]: Start accepts. Automaton has 70342 states and 288440 transitions. Word has length 66 [2021-06-12 15:21:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:29,094 INFO L482 AbstractCegarLoop]: Abstraction has 70342 states and 288440 transitions. [2021-06-12 15:21:29,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 70342 states and 288440 transitions. [2021-06-12 15:21:29,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-12 15:21:29,159 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:29,159 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:29,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-12 15:21:29,159 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:29,160 INFO L82 PathProgramCache]: Analyzing trace with hash -78659055, now seen corresponding path program 1 times [2021-06-12 15:21:29,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:29,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99950548] [2021-06-12 15:21:29,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:29,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:29,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99950548] [2021-06-12 15:21:29,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99950548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:29,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:29,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-12 15:21:29,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634846057] [2021-06-12 15:21:29,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-12 15:21:29,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:29,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-12 15:21:29,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:21:29,266 INFO L87 Difference]: Start difference. First operand 70342 states and 288440 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:30,257 INFO L93 Difference]: Finished difference Result 85397 states and 345997 transitions. [2021-06-12 15:21:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 15:21:30,258 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-12 15:21:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:30,507 INFO L225 Difference]: With dead ends: 85397 [2021-06-12 15:21:30,507 INFO L226 Difference]: Without dead ends: 81219 [2021-06-12 15:21:30,508 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:21:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81219 states. [2021-06-12 15:21:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81219 to 69448. [2021-06-12 15:21:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69448 states, 69447 states have (on average 4.10232263452705) internal successors, (284894), 69447 states have internal predecessors, (284894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69448 states to 69448 states and 284894 transitions. [2021-06-12 15:21:33,061 INFO L78 Accepts]: Start accepts. Automaton has 69448 states and 284894 transitions. Word has length 69 [2021-06-12 15:21:33,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:33,061 INFO L482 AbstractCegarLoop]: Abstraction has 69448 states and 284894 transitions. [2021-06-12 15:21:33,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 69448 states and 284894 transitions. [2021-06-12 15:21:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-12 15:21:33,136 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:33,136 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:33,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-12 15:21:33,136 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:33,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:33,137 INFO L82 PathProgramCache]: Analyzing trace with hash -434188375, now seen corresponding path program 1 times [2021-06-12 15:21:33,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:33,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125651918] [2021-06-12 15:21:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:33,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:33,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125651918] [2021-06-12 15:21:33,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125651918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:33,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:33,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-12 15:21:33,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411881832] [2021-06-12 15:21:33,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-12 15:21:33,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:33,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-12 15:21:33,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:21:33,283 INFO L87 Difference]: Start difference. First operand 69448 states and 284894 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:34,900 INFO L93 Difference]: Finished difference Result 83375 states and 337948 transitions. [2021-06-12 15:21:34,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-12 15:21:34,900 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-12 15:21:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:35,296 INFO L225 Difference]: With dead ends: 83375 [2021-06-12 15:21:35,297 INFO L226 Difference]: Without dead ends: 76110 [2021-06-12 15:21:35,297 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 213.8ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-06-12 15:21:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76110 states. [2021-06-12 15:21:36,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76110 to 67963. [2021-06-12 15:21:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67963 states, 67962 states have (on average 4.104926282334246) internal successors, (278979), 67962 states have internal predecessors, (278979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67963 states to 67963 states and 278979 transitions. [2021-06-12 15:21:37,488 INFO L78 Accepts]: Start accepts. Automaton has 67963 states and 278979 transitions. Word has length 69 [2021-06-12 15:21:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:37,489 INFO L482 AbstractCegarLoop]: Abstraction has 67963 states and 278979 transitions. [2021-06-12 15:21:37,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 67963 states and 278979 transitions. [2021-06-12 15:21:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-12 15:21:37,594 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:37,594 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:37,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-12 15:21:37,594 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:37,594 INFO L82 PathProgramCache]: Analyzing trace with hash -513613288, now seen corresponding path program 1 times [2021-06-12 15:21:37,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:37,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761290561] [2021-06-12 15:21:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:38,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:38,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761290561] [2021-06-12 15:21:38,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761290561] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:38,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:38,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-12 15:21:38,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089373099] [2021-06-12 15:21:38,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-12 15:21:38,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:38,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-12 15:21:38,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-06-12 15:21:38,162 INFO L87 Difference]: Start difference. First operand 67963 states and 278979 transitions. Second operand has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:40,305 INFO L93 Difference]: Finished difference Result 79344 states and 327032 transitions. [2021-06-12 15:21:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-12 15:21:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-12 15:21:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:40,545 INFO L225 Difference]: With dead ends: 79344 [2021-06-12 15:21:40,545 INFO L226 Difference]: Without dead ends: 78840 [2021-06-12 15:21:40,546 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1020.8ms TimeCoverageRelationStatistics Valid=211, Invalid=1429, Unknown=0, NotChecked=0, Total=1640 [2021-06-12 15:21:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78840 states. [2021-06-12 15:21:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78840 to 66498. [2021-06-12 15:21:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66498 states, 66497 states have (on average 4.112005052859527) internal successors, (273436), 66497 states have internal predecessors, (273436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66498 states to 66498 states and 273436 transitions. [2021-06-12 15:21:42,767 INFO L78 Accepts]: Start accepts. Automaton has 66498 states and 273436 transitions. Word has length 71 [2021-06-12 15:21:42,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:42,768 INFO L482 AbstractCegarLoop]: Abstraction has 66498 states and 273436 transitions. [2021-06-12 15:21:42,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 66498 states and 273436 transitions. [2021-06-12 15:21:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:21:42,848 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:42,848 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:42,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-12 15:21:42,848 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:42,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:42,849 INFO L82 PathProgramCache]: Analyzing trace with hash -575309955, now seen corresponding path program 1 times [2021-06-12 15:21:42,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:42,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403652824] [2021-06-12 15:21:42,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:43,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:43,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403652824] [2021-06-12 15:21:43,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403652824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:43,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:43,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-12 15:21:43,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842697603] [2021-06-12 15:21:43,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-12 15:21:43,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:43,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-12 15:21:43,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:21:43,121 INFO L87 Difference]: Start difference. First operand 66498 states and 273436 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:44,160 INFO L93 Difference]: Finished difference Result 68492 states and 279231 transitions. [2021-06-12 15:21:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-12 15:21:44,160 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:21:44,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:44,426 INFO L225 Difference]: With dead ends: 68492 [2021-06-12 15:21:44,427 INFO L226 Difference]: Without dead ends: 66050 [2021-06-12 15:21:44,427 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 276.8ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-12 15:21:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66050 states. [2021-06-12 15:21:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66050 to 65106. [2021-06-12 15:21:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65106 states, 65105 states have (on average 4.109653636433453) internal successors, (267559), 65105 states have internal predecessors, (267559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65106 states to 65106 states and 267559 transitions. [2021-06-12 15:21:46,459 INFO L78 Accepts]: Start accepts. Automaton has 65106 states and 267559 transitions. Word has length 74 [2021-06-12 15:21:46,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:46,459 INFO L482 AbstractCegarLoop]: Abstraction has 65106 states and 267559 transitions. [2021-06-12 15:21:46,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:46,459 INFO L276 IsEmpty]: Start isEmpty. Operand 65106 states and 267559 transitions. [2021-06-12 15:21:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:21:46,587 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:46,588 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:46,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-12 15:21:46,588 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:46,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:46,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1735453924, now seen corresponding path program 1 times [2021-06-12 15:21:46,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:46,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170248655] [2021-06-12 15:21:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:46,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:46,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170248655] [2021-06-12 15:21:46,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170248655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:46,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:46,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-12 15:21:46,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102269062] [2021-06-12 15:21:46,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-12 15:21:46,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:46,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-12 15:21:46,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:21:46,836 INFO L87 Difference]: Start difference. First operand 65106 states and 267559 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:47,962 INFO L93 Difference]: Finished difference Result 71909 states and 293647 transitions. [2021-06-12 15:21:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 15:21:47,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:21:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:48,155 INFO L225 Difference]: With dead ends: 71909 [2021-06-12 15:21:48,156 INFO L226 Difference]: Without dead ends: 71189 [2021-06-12 15:21:48,156 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 393.8ms TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2021-06-12 15:21:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71189 states. [2021-06-12 15:21:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71189 to 67573. [2021-06-12 15:21:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67573 states, 67572 states have (on average 4.1057242644882495) internal successors, (277432), 67572 states have internal predecessors, (277432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67573 states to 67573 states and 277432 transitions. [2021-06-12 15:21:50,268 INFO L78 Accepts]: Start accepts. Automaton has 67573 states and 277432 transitions. Word has length 74 [2021-06-12 15:21:50,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:50,268 INFO L482 AbstractCegarLoop]: Abstraction has 67573 states and 277432 transitions. [2021-06-12 15:21:50,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:50,268 INFO L276 IsEmpty]: Start isEmpty. Operand 67573 states and 277432 transitions. [2021-06-12 15:21:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:21:50,363 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:50,363 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:50,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-12 15:21:50,363 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash -12043885, now seen corresponding path program 2 times [2021-06-12 15:21:50,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:50,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527552604] [2021-06-12 15:21:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:50,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:50,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527552604] [2021-06-12 15:21:50,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527552604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:50,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:50,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:21:50,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420850050] [2021-06-12 15:21:50,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:21:50,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:50,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:21:50,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:21:50,985 INFO L87 Difference]: Start difference. First operand 67573 states and 277432 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:53,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:53,207 INFO L93 Difference]: Finished difference Result 77318 states and 314259 transitions. [2021-06-12 15:21:53,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-12 15:21:53,207 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:21:53,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:53,399 INFO L225 Difference]: With dead ends: 77318 [2021-06-12 15:21:53,399 INFO L226 Difference]: Without dead ends: 74876 [2021-06-12 15:21:53,400 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1332.5ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-06-12 15:21:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74876 states. [2021-06-12 15:21:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74876 to 70091. [2021-06-12 15:21:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70091 states, 70090 states have (on average 4.102382650877443) internal successors, (287536), 70090 states have internal predecessors, (287536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70091 states to 70091 states and 287536 transitions. [2021-06-12 15:21:55,816 INFO L78 Accepts]: Start accepts. Automaton has 70091 states and 287536 transitions. Word has length 74 [2021-06-12 15:21:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:21:55,816 INFO L482 AbstractCegarLoop]: Abstraction has 70091 states and 287536 transitions. [2021-06-12 15:21:55,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 70091 states and 287536 transitions. [2021-06-12 15:21:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:21:55,953 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:21:55,954 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:21:55,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-12 15:21:55,954 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:21:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:21:55,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2063219768, now seen corresponding path program 2 times [2021-06-12 15:21:55,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:21:55,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723705163] [2021-06-12 15:21:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:21:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:21:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:21:56,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:21:56,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723705163] [2021-06-12 15:21:56,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723705163] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:21:56,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:21:56,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-12 15:21:56,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821210414] [2021-06-12 15:21:56,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-12 15:21:56,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:21:56,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-12 15:21:56,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-06-12 15:21:56,476 INFO L87 Difference]: Start difference. First operand 70091 states and 287536 transitions. Second operand has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:21:58,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:21:58,101 INFO L93 Difference]: Finished difference Result 80784 states and 328391 transitions. [2021-06-12 15:21:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-12 15:21:58,102 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:21:58,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:21:58,653 INFO L225 Difference]: With dead ends: 80784 [2021-06-12 15:21:58,653 INFO L226 Difference]: Without dead ends: 78288 [2021-06-12 15:21:58,669 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 817.3ms TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2021-06-12 15:21:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78288 states. [2021-06-12 15:22:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78288 to 70012. [2021-06-12 15:22:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70012 states, 70011 states have (on average 4.112982245647113) internal successors, (287954), 70011 states have internal predecessors, (287954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70012 states to 70012 states and 287954 transitions. [2021-06-12 15:22:00,789 INFO L78 Accepts]: Start accepts. Automaton has 70012 states and 287954 transitions. Word has length 74 [2021-06-12 15:22:00,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:00,789 INFO L482 AbstractCegarLoop]: Abstraction has 70012 states and 287954 transitions. [2021-06-12 15:22:00,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand 70012 states and 287954 transitions. [2021-06-12 15:22:00,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:00,861 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:00,861 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:00,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-12 15:22:00,861 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:00,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1491697532, now seen corresponding path program 3 times [2021-06-12 15:22:00,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:00,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398898297] [2021-06-12 15:22:00,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:01,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:01,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398898297] [2021-06-12 15:22:01,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398898297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:01,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:01,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:22:01,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43442011] [2021-06-12 15:22:01,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:22:01,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:01,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:22:01,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:22:01,596 INFO L87 Difference]: Start difference. First operand 70012 states and 287954 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:03,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:03,009 INFO L93 Difference]: Finished difference Result 83475 states and 340668 transitions. [2021-06-12 15:22:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-12 15:22:03,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:03,223 INFO L225 Difference]: With dead ends: 83475 [2021-06-12 15:22:03,224 INFO L226 Difference]: Without dead ends: 82755 [2021-06-12 15:22:03,224 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1044.8ms TimeCoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2021-06-12 15:22:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82755 states. [2021-06-12 15:22:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82755 to 69409. [2021-06-12 15:22:05,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69409 states, 69408 states have (on average 4.108733863531581) internal successors, (285179), 69408 states have internal predecessors, (285179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69409 states to 69409 states and 285179 transitions. [2021-06-12 15:22:05,381 INFO L78 Accepts]: Start accepts. Automaton has 69409 states and 285179 transitions. Word has length 74 [2021-06-12 15:22:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:05,381 INFO L482 AbstractCegarLoop]: Abstraction has 69409 states and 285179 transitions. [2021-06-12 15:22:05,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 69409 states and 285179 transitions. [2021-06-12 15:22:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:05,452 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:05,452 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:05,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-12 15:22:05,452 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:05,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:05,452 INFO L82 PathProgramCache]: Analyzing trace with hash 97957834, now seen corresponding path program 4 times [2021-06-12 15:22:05,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:05,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860043592] [2021-06-12 15:22:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:06,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:06,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860043592] [2021-06-12 15:22:06,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860043592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:06,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:06,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-12 15:22:06,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644874751] [2021-06-12 15:22:06,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-12 15:22:06,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:06,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-12 15:22:06,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-06-12 15:22:06,232 INFO L87 Difference]: Start difference. First operand 69409 states and 285179 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:07,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:07,719 INFO L93 Difference]: Finished difference Result 80825 states and 329503 transitions. [2021-06-12 15:22:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-12 15:22:07,719 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:07,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:07,938 INFO L225 Difference]: With dead ends: 80825 [2021-06-12 15:22:07,938 INFO L226 Difference]: Without dead ends: 80105 [2021-06-12 15:22:07,939 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1157.8ms TimeCoverageRelationStatistics Valid=205, Invalid=1201, Unknown=0, NotChecked=0, Total=1406 [2021-06-12 15:22:08,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80105 states. [2021-06-12 15:22:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80105 to 68977. [2021-06-12 15:22:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68977 states, 68976 states have (on average 4.10967582927395) internal successors, (283469), 68976 states have internal predecessors, (283469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68977 states to 68977 states and 283469 transitions. [2021-06-12 15:22:10,147 INFO L78 Accepts]: Start accepts. Automaton has 68977 states and 283469 transitions. Word has length 74 [2021-06-12 15:22:10,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:10,147 INFO L482 AbstractCegarLoop]: Abstraction has 68977 states and 283469 transitions. [2021-06-12 15:22:10,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:10,147 INFO L276 IsEmpty]: Start isEmpty. Operand 68977 states and 283469 transitions. [2021-06-12 15:22:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:10,221 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:10,221 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:10,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-12 15:22:10,221 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:10,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:10,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1954461574, now seen corresponding path program 1 times [2021-06-12 15:22:10,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:10,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184395975] [2021-06-12 15:22:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:10,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:10,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184395975] [2021-06-12 15:22:10,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184395975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:10,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:10,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:22:10,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115591002] [2021-06-12 15:22:10,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:22:10,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:10,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:22:10,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:22:10,892 INFO L87 Difference]: Start difference. First operand 68977 states and 283469 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:12,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:12,135 INFO L93 Difference]: Finished difference Result 78762 states and 321127 transitions. [2021-06-12 15:22:12,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 15:22:12,135 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:12,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:12,364 INFO L225 Difference]: With dead ends: 78762 [2021-06-12 15:22:12,364 INFO L226 Difference]: Without dead ends: 78054 [2021-06-12 15:22:12,364 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 594.7ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-06-12 15:22:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78054 states. [2021-06-12 15:22:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78054 to 68968. [2021-06-12 15:22:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68968 states, 68967 states have (on average 4.109994635115345) internal successors, (283454), 68967 states have internal predecessors, (283454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68968 states to 68968 states and 283454 transitions. [2021-06-12 15:22:14,458 INFO L78 Accepts]: Start accepts. Automaton has 68968 states and 283454 transitions. Word has length 74 [2021-06-12 15:22:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:14,459 INFO L482 AbstractCegarLoop]: Abstraction has 68968 states and 283454 transitions. [2021-06-12 15:22:14,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 68968 states and 283454 transitions. [2021-06-12 15:22:14,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:14,561 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:14,561 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:14,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-12 15:22:14,561 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:14,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1045567012, now seen corresponding path program 2 times [2021-06-12 15:22:14,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:14,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841697413] [2021-06-12 15:22:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:14,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:14,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841697413] [2021-06-12 15:22:14,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841697413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:14,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:14,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:22:14,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266271858] [2021-06-12 15:22:14,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:22:14,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:14,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:22:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:22:14,888 INFO L87 Difference]: Start difference. First operand 68968 states and 283454 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:16,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:16,209 INFO L93 Difference]: Finished difference Result 77678 states and 317124 transitions. [2021-06-12 15:22:16,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 15:22:16,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:16,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:16,706 INFO L225 Difference]: With dead ends: 77678 [2021-06-12 15:22:16,707 INFO L226 Difference]: Without dead ends: 76970 [2021-06-12 15:22:16,707 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 567.4ms TimeCoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2021-06-12 15:22:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76970 states. [2021-06-12 15:22:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76970 to 68974. [2021-06-12 15:22:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68974 states, 68973 states have (on average 4.109912574485668) internal successors, (283473), 68973 states have internal predecessors, (283473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68974 states to 68974 states and 283473 transitions. [2021-06-12 15:22:19,045 INFO L78 Accepts]: Start accepts. Automaton has 68974 states and 283473 transitions. Word has length 74 [2021-06-12 15:22:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:19,045 INFO L482 AbstractCegarLoop]: Abstraction has 68974 states and 283473 transitions. [2021-06-12 15:22:19,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 68974 states and 283473 transitions. [2021-06-12 15:22:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:19,254 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:19,254 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:19,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-12 15:22:19,255 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:19,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:19,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1105650750, now seen corresponding path program 3 times [2021-06-12 15:22:19,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:19,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493942912] [2021-06-12 15:22:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:19,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:19,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493942912] [2021-06-12 15:22:19,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493942912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:19,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:19,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:22:19,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259630293] [2021-06-12 15:22:19,814 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:22:19,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:22:19,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:22:19,815 INFO L87 Difference]: Start difference. First operand 68974 states and 283473 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:21,482 INFO L93 Difference]: Finished difference Result 74264 states and 303530 transitions. [2021-06-12 15:22:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-12 15:22:21,482 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:21,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:21,952 INFO L225 Difference]: With dead ends: 74264 [2021-06-12 15:22:21,953 INFO L226 Difference]: Without dead ends: 73556 [2021-06-12 15:22:21,953 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1196.9ms TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-06-12 15:22:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73556 states. [2021-06-12 15:22:23,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73556 to 65518. [2021-06-12 15:22:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-12 15:22:23,669 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-12 15:22:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:23,669 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-12 15:22:23,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-12 15:22:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:23,730 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:23,730 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:23,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-12 15:22:23,730 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:23,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:23,731 INFO L82 PathProgramCache]: Analyzing trace with hash -281029985, now seen corresponding path program 3 times [2021-06-12 15:22:23,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:23,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30310034] [2021-06-12 15:22:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:24,199 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-12 15:22:24,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:24,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:24,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30310034] [2021-06-12 15:22:24,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30310034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:24,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:24,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:22:24,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175085018] [2021-06-12 15:22:24,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:22:24,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:24,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:22:24,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:22:24,512 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:26,236 INFO L93 Difference]: Finished difference Result 71477 states and 291197 transitions. [2021-06-12 15:22:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-12 15:22:26,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:26,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:26,413 INFO L225 Difference]: With dead ends: 71477 [2021-06-12 15:22:26,413 INFO L226 Difference]: Without dead ends: 69035 [2021-06-12 15:22:26,414 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1519.9ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-06-12 15:22:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69035 states. [2021-06-12 15:22:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69035 to 65518. [2021-06-12 15:22:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-12 15:22:28,384 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-12 15:22:28,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:28,384 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-12 15:22:28,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-12 15:22:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:28,455 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:28,456 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:28,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-12 15:22:28,456 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:28,456 INFO L82 PathProgramCache]: Analyzing trace with hash 893917249, now seen corresponding path program 4 times [2021-06-12 15:22:28,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:28,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703251611] [2021-06-12 15:22:28,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:28,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:28,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703251611] [2021-06-12 15:22:28,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703251611] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:28,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:28,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:22:28,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216664510] [2021-06-12 15:22:28,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:22:28,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:28,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:22:28,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:22:28,944 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:29,329 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-06-12 15:22:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:30,824 INFO L93 Difference]: Finished difference Result 70422 states and 287229 transitions. [2021-06-12 15:22:30,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-12 15:22:30,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:30,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:31,012 INFO L225 Difference]: With dead ends: 70422 [2021-06-12 15:22:31,012 INFO L226 Difference]: Without dead ends: 67980 [2021-06-12 15:22:31,013 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1312.0ms TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2021-06-12 15:22:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67980 states. [2021-06-12 15:22:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67980 to 65518. [2021-06-12 15:22:32,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-12 15:22:33,039 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-12 15:22:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:33,039 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-12 15:22:33,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-12 15:22:33,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:33,156 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:33,156 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:33,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-12 15:22:33,156 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:33,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:33,157 INFO L82 PathProgramCache]: Analyzing trace with hash -750566983, now seen corresponding path program 5 times [2021-06-12 15:22:33,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:33,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235369227] [2021-06-12 15:22:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:33,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:33,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235369227] [2021-06-12 15:22:33,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235369227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:33,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:33,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 15:22:33,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045110699] [2021-06-12 15:22:33,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 15:22:33,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:33,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 15:22:33,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 15:22:33,555 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:34,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:34,982 INFO L93 Difference]: Finished difference Result 71466 states and 291198 transitions. [2021-06-12 15:22:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-12 15:22:34,983 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:35,158 INFO L225 Difference]: With dead ends: 71466 [2021-06-12 15:22:35,158 INFO L226 Difference]: Without dead ends: 69024 [2021-06-12 15:22:35,159 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 690.3ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-06-12 15:22:35,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69024 states. [2021-06-12 15:22:36,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69024 to 65518. [2021-06-12 15:22:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-12 15:22:37,165 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-12 15:22:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:37,165 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-12 15:22:37,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-12 15:22:37,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:37,227 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:37,227 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:37,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-12 15:22:37,227 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:37,228 INFO L82 PathProgramCache]: Analyzing trace with hash 472196903, now seen corresponding path program 6 times [2021-06-12 15:22:37,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:37,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319315151] [2021-06-12 15:22:37,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:37,967 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2021-06-12 15:22:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:37,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:37,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319315151] [2021-06-12 15:22:37,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319315151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:37,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:37,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-12 15:22:37,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106365986] [2021-06-12 15:22:37,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-12 15:22:37,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:37,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-12 15:22:37,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-06-12 15:22:37,970 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:39,379 INFO L93 Difference]: Finished difference Result 70519 states and 287760 transitions. [2021-06-12 15:22:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-12 15:22:39,379 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:39,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:39,571 INFO L225 Difference]: With dead ends: 70519 [2021-06-12 15:22:39,571 INFO L226 Difference]: Without dead ends: 68122 [2021-06-12 15:22:39,572 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1099.0ms TimeCoverageRelationStatistics Valid=199, Invalid=1283, Unknown=0, NotChecked=0, Total=1482 [2021-06-12 15:22:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68122 states. [2021-06-12 15:22:41,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68122 to 65518. [2021-06-12 15:22:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-12 15:22:41,595 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-12 15:22:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:41,595 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-12 15:22:41,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-12 15:22:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:41,697 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:41,697 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:41,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-12 15:22:41,697 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:41,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:41,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1234254797, now seen corresponding path program 7 times [2021-06-12 15:22:41,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:41,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822849061] [2021-06-12 15:22:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:42,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:42,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822849061] [2021-06-12 15:22:42,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822849061] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:42,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:42,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-12 15:22:42,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290485299] [2021-06-12 15:22:42,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-12 15:22:42,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:42,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-12 15:22:42,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-12 15:22:42,209 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:44,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:44,646 INFO L93 Difference]: Finished difference Result 70234 states and 286777 transitions. [2021-06-12 15:22:44,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-12 15:22:44,646 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:44,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:44,839 INFO L225 Difference]: With dead ends: 70234 [2021-06-12 15:22:44,840 INFO L226 Difference]: Without dead ends: 67882 [2021-06-12 15:22:44,840 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 953.9ms TimeCoverageRelationStatistics Valid=204, Invalid=1518, Unknown=0, NotChecked=0, Total=1722 [2021-06-12 15:22:45,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67882 states. [2021-06-12 15:22:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67882 to 64843. [2021-06-12 15:22:46,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64843 states, 64842 states have (on average 4.109990438296166) internal successors, (266500), 64842 states have internal predecessors, (266500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:46,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64843 states to 64843 states and 266500 transitions. [2021-06-12 15:22:46,452 INFO L78 Accepts]: Start accepts. Automaton has 64843 states and 266500 transitions. Word has length 74 [2021-06-12 15:22:46,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:46,453 INFO L482 AbstractCegarLoop]: Abstraction has 64843 states and 266500 transitions. [2021-06-12 15:22:46,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:46,453 INFO L276 IsEmpty]: Start isEmpty. Operand 64843 states and 266500 transitions. [2021-06-12 15:22:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:46,851 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:46,852 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:46,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-12 15:22:46,852 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1983668183, now seen corresponding path program 8 times [2021-06-12 15:22:46,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:46,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227646137] [2021-06-12 15:22:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:47,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:47,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227646137] [2021-06-12 15:22:47,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227646137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:47,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:47,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-12 15:22:47,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058386689] [2021-06-12 15:22:47,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-12 15:22:47,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:47,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-12 15:22:47,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:22:47,189 INFO L87 Difference]: Start difference. First operand 64843 states and 266500 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:48,173 INFO L93 Difference]: Finished difference Result 69741 states and 283968 transitions. [2021-06-12 15:22:48,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-12 15:22:48,173 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:48,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:48,370 INFO L225 Difference]: With dead ends: 69741 [2021-06-12 15:22:48,370 INFO L226 Difference]: Without dead ends: 67299 [2021-06-12 15:22:48,371 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 404.0ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-06-12 15:22:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67299 states. [2021-06-12 15:22:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67299 to 64843. [2021-06-12 15:22:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64843 states, 64842 states have (on average 4.109990438296166) internal successors, (266500), 64842 states have internal predecessors, (266500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64843 states to 64843 states and 266500 transitions. [2021-06-12 15:22:50,295 INFO L78 Accepts]: Start accepts. Automaton has 64843 states and 266500 transitions. Word has length 74 [2021-06-12 15:22:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:50,295 INFO L482 AbstractCegarLoop]: Abstraction has 64843 states and 266500 transitions. [2021-06-12 15:22:50,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 64843 states and 266500 transitions. [2021-06-12 15:22:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:50,438 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:50,438 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:50,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-12 15:22:50,438 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:50,438 INFO L82 PathProgramCache]: Analyzing trace with hash -348947791, now seen corresponding path program 9 times [2021-06-12 15:22:50,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:50,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904075971] [2021-06-12 15:22:50,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:50,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:50,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904075971] [2021-06-12 15:22:50,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904075971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:50,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:50,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-12 15:22:50,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355484223] [2021-06-12 15:22:50,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-12 15:22:50,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:50,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-12 15:22:50,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-06-12 15:22:50,682 INFO L87 Difference]: Start difference. First operand 64843 states and 266500 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:51,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:51,742 INFO L93 Difference]: Finished difference Result 68861 states and 278790 transitions. [2021-06-12 15:22:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 15:22:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:51,926 INFO L225 Difference]: With dead ends: 68861 [2021-06-12 15:22:51,926 INFO L226 Difference]: Without dead ends: 66419 [2021-06-12 15:22:51,926 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 362.3ms TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-06-12 15:22:52,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66419 states. [2021-06-12 15:22:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66419 to 62864. [2021-06-12 15:22:53,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62864 states, 62863 states have (on average 4.088732640822105) internal successors, (257030), 62863 states have internal predecessors, (257030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62864 states to 62864 states and 257030 transitions. [2021-06-12 15:22:53,868 INFO L78 Accepts]: Start accepts. Automaton has 62864 states and 257030 transitions. Word has length 74 [2021-06-12 15:22:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:53,868 INFO L482 AbstractCegarLoop]: Abstraction has 62864 states and 257030 transitions. [2021-06-12 15:22:53,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 62864 states and 257030 transitions. [2021-06-12 15:22:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-12 15:22:53,945 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:53,945 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:53,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-12 15:22:53,945 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:53,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:53,955 INFO L82 PathProgramCache]: Analyzing trace with hash 481364362, now seen corresponding path program 5 times [2021-06-12 15:22:53,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:53,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608798838] [2021-06-12 15:22:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:54,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:54,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608798838] [2021-06-12 15:22:54,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608798838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:54,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:54,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-12 15:22:54,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187500455] [2021-06-12 15:22:54,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-12 15:22:54,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:54,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-12 15:22:54,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-06-12 15:22:54,254 INFO L87 Difference]: Start difference. First operand 62864 states and 257030 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:55,191 INFO L93 Difference]: Finished difference Result 63082 states and 256575 transitions. [2021-06-12 15:22:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-12 15:22:55,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-12 15:22:55,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:55,363 INFO L225 Difference]: With dead ends: 63082 [2021-06-12 15:22:55,363 INFO L226 Difference]: Without dead ends: 60586 [2021-06-12 15:22:55,363 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 313.7ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-06-12 15:22:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60586 states. [2021-06-12 15:22:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60586 to 58100. [2021-06-12 15:22:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58100 states, 58099 states have (on average 4.112549269350591) internal successors, (238935), 58099 states have internal predecessors, (238935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58100 states to 58100 states and 238935 transitions. [2021-06-12 15:22:56,914 INFO L78 Accepts]: Start accepts. Automaton has 58100 states and 238935 transitions. Word has length 74 [2021-06-12 15:22:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:56,915 INFO L482 AbstractCegarLoop]: Abstraction has 58100 states and 238935 transitions. [2021-06-12 15:22:56,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 58100 states and 238935 transitions. [2021-06-12 15:22:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-12 15:22:56,972 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:56,972 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:56,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-12 15:22:56,972 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:56,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1416290637, now seen corresponding path program 1 times [2021-06-12 15:22:56,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:56,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82163853] [2021-06-12 15:22:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:57,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:57,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82163853] [2021-06-12 15:22:57,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82163853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:57,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:57,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-12 15:22:57,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632875688] [2021-06-12 15:22:57,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 15:22:57,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:57,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 15:22:57,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-12 15:22:57,094 INFO L87 Difference]: Start difference. First operand 58100 states and 238935 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:22:57,898 INFO L93 Difference]: Finished difference Result 68834 states and 279215 transitions. [2021-06-12 15:22:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-12 15:22:57,899 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-12 15:22:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:22:58,300 INFO L225 Difference]: With dead ends: 68834 [2021-06-12 15:22:58,301 INFO L226 Difference]: Without dead ends: 56513 [2021-06-12 15:22:58,301 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 194.3ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-06-12 15:22:58,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56513 states. [2021-06-12 15:22:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56513 to 49781. [2021-06-12 15:22:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49781 states, 49780 states have (on average 4.071032543190036) internal successors, (202656), 49780 states have internal predecessors, (202656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49781 states to 49781 states and 202656 transitions. [2021-06-12 15:22:59,471 INFO L78 Accepts]: Start accepts. Automaton has 49781 states and 202656 transitions. Word has length 75 [2021-06-12 15:22:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:22:59,472 INFO L482 AbstractCegarLoop]: Abstraction has 49781 states and 202656 transitions. [2021-06-12 15:22:59,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:22:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand 49781 states and 202656 transitions. [2021-06-12 15:22:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-12 15:22:59,857 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:22:59,857 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:22:59,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-12 15:22:59,857 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:22:59,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:22:59,857 INFO L82 PathProgramCache]: Analyzing trace with hash 231134509, now seen corresponding path program 1 times [2021-06-12 15:22:59,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:22:59,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575027864] [2021-06-12 15:22:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:22:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:22:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:22:59,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:22:59,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575027864] [2021-06-12 15:22:59,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575027864] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:22:59,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:22:59,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-12 15:22:59,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223246384] [2021-06-12 15:22:59,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-12 15:22:59,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:22:59,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-12 15:22:59,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-12 15:22:59,984 INFO L87 Difference]: Start difference. First operand 49781 states and 202656 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:00,534 INFO L93 Difference]: Finished difference Result 63188 states and 255322 transitions. [2021-06-12 15:23:00,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-12 15:23:00,534 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-12 15:23:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:01,018 INFO L225 Difference]: With dead ends: 63188 [2021-06-12 15:23:01,018 INFO L226 Difference]: Without dead ends: 53153 [2021-06-12 15:23:01,018 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-06-12 15:23:01,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53153 states. [2021-06-12 15:23:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53153 to 45767. [2021-06-12 15:23:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45767 states, 45766 states have (on average 4.058362102871127) internal successors, (185735), 45766 states have internal predecessors, (185735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45767 states to 45767 states and 185735 transitions. [2021-06-12 15:23:02,070 INFO L78 Accepts]: Start accepts. Automaton has 45767 states and 185735 transitions. Word has length 75 [2021-06-12 15:23:02,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:02,070 INFO L482 AbstractCegarLoop]: Abstraction has 45767 states and 185735 transitions. [2021-06-12 15:23:02,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 45767 states and 185735 transitions. [2021-06-12 15:23:02,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-12 15:23:02,120 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:02,120 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:02,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-12 15:23:02,120 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:02,120 INFO L82 PathProgramCache]: Analyzing trace with hash 958266511, now seen corresponding path program 2 times [2021-06-12 15:23:02,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:02,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334031633] [2021-06-12 15:23:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:02,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:02,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334031633] [2021-06-12 15:23:02,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334031633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:02,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:02,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-12 15:23:02,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588033300] [2021-06-12 15:23:02,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 15:23:02,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:02,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 15:23:02,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-06-12 15:23:02,592 INFO L87 Difference]: Start difference. First operand 45767 states and 185735 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:03,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:03,230 INFO L93 Difference]: Finished difference Result 51725 states and 208645 transitions. [2021-06-12 15:23:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-12 15:23:03,230 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-12 15:23:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:03,335 INFO L225 Difference]: With dead ends: 51725 [2021-06-12 15:23:03,335 INFO L226 Difference]: Without dead ends: 45335 [2021-06-12 15:23:03,335 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 280.5ms TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2021-06-12 15:23:03,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45335 states. [2021-06-12 15:23:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45335 to 42692. [2021-06-12 15:23:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42692 states, 42691 states have (on average 4.06488487034738) internal successors, (173534), 42691 states have internal predecessors, (173534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:04,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42692 states to 42692 states and 173534 transitions. [2021-06-12 15:23:04,544 INFO L78 Accepts]: Start accepts. Automaton has 42692 states and 173534 transitions. Word has length 75 [2021-06-12 15:23:04,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:04,545 INFO L482 AbstractCegarLoop]: Abstraction has 42692 states and 173534 transitions. [2021-06-12 15:23:04,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:04,545 INFO L276 IsEmpty]: Start isEmpty. Operand 42692 states and 173534 transitions. [2021-06-12 15:23:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-06-12 15:23:04,592 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:04,593 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:04,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-12 15:23:04,593 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:04,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:04,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1889635442, now seen corresponding path program 1 times [2021-06-12 15:23:04,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:04,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16048707] [2021-06-12 15:23:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:05,188 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-06-12 15:23:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:05,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:05,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16048707] [2021-06-12 15:23:05,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16048707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:05,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:05,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 15:23:05,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408455408] [2021-06-12 15:23:05,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 15:23:05,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:05,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 15:23:05,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-06-12 15:23:05,833 INFO L87 Difference]: Start difference. First operand 42692 states and 173534 transitions. Second operand has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:08,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:08,798 INFO L93 Difference]: Finished difference Result 56509 states and 230317 transitions. [2021-06-12 15:23:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-12 15:23:08,798 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-06-12 15:23:08,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:08,949 INFO L225 Difference]: With dead ends: 56509 [2021-06-12 15:23:08,949 INFO L226 Difference]: Without dead ends: 55111 [2021-06-12 15:23:08,950 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2351.6ms TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2021-06-12 15:23:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55111 states. [2021-06-12 15:23:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55111 to 48038. [2021-06-12 15:23:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48038 states, 48037 states have (on average 4.131440348065033) internal successors, (198462), 48037 states have internal predecessors, (198462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:10,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48038 states to 48038 states and 198462 transitions. [2021-06-12 15:23:10,304 INFO L78 Accepts]: Start accepts. Automaton has 48038 states and 198462 transitions. Word has length 77 [2021-06-12 15:23:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:10,304 INFO L482 AbstractCegarLoop]: Abstraction has 48038 states and 198462 transitions. [2021-06-12 15:23:10,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 48038 states and 198462 transitions. [2021-06-12 15:23:10,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-06-12 15:23:10,360 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:10,360 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:10,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-12 15:23:10,360 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:10,360 INFO L82 PathProgramCache]: Analyzing trace with hash 647165310, now seen corresponding path program 2 times [2021-06-12 15:23:10,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:10,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895617297] [2021-06-12 15:23:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:10,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:10,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895617297] [2021-06-12 15:23:10,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895617297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:10,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:10,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-06-12 15:23:10,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972965507] [2021-06-12 15:23:10,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-12 15:23:10,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:10,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-12 15:23:10,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-06-12 15:23:10,878 INFO L87 Difference]: Start difference. First operand 48038 states and 198462 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:12,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:12,557 INFO L93 Difference]: Finished difference Result 44303 states and 180392 transitions. [2021-06-12 15:23:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-12 15:23:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-06-12 15:23:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:12,662 INFO L225 Difference]: With dead ends: 44303 [2021-06-12 15:23:12,662 INFO L226 Difference]: Without dead ends: 43043 [2021-06-12 15:23:12,662 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1208.6ms TimeCoverageRelationStatistics Valid=237, Invalid=1569, Unknown=0, NotChecked=0, Total=1806 [2021-06-12 15:23:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43043 states. [2021-06-12 15:23:13,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43043 to 33407. [2021-06-12 15:23:13,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33407 states, 33406 states have (on average 4.022061905046997) internal successors, (134361), 33406 states have internal predecessors, (134361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33407 states to 33407 states and 134361 transitions. [2021-06-12 15:23:13,473 INFO L78 Accepts]: Start accepts. Automaton has 33407 states and 134361 transitions. Word has length 77 [2021-06-12 15:23:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:13,473 INFO L482 AbstractCegarLoop]: Abstraction has 33407 states and 134361 transitions. [2021-06-12 15:23:13,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 33407 states and 134361 transitions. [2021-06-12 15:23:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-06-12 15:23:13,517 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:13,517 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:13,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-12 15:23:13,517 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash 459490309, now seen corresponding path program 1 times [2021-06-12 15:23:13,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:13,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064516311] [2021-06-12 15:23:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:14,004 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-06-12 15:23:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:14,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:14,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064516311] [2021-06-12 15:23:14,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064516311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:14,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:14,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 15:23:14,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304540041] [2021-06-12 15:23:14,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 15:23:14,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:14,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 15:23:14,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-06-12 15:23:14,696 INFO L87 Difference]: Start difference. First operand 33407 states and 134361 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:17,152 INFO L93 Difference]: Finished difference Result 29773 states and 118565 transitions. [2021-06-12 15:23:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-12 15:23:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-06-12 15:23:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:17,219 INFO L225 Difference]: With dead ends: 29773 [2021-06-12 15:23:17,219 INFO L226 Difference]: Without dead ends: 27685 [2021-06-12 15:23:17,220 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 2207.9ms TimeCoverageRelationStatistics Valid=264, Invalid=2286, Unknown=0, NotChecked=0, Total=2550 [2021-06-12 15:23:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27685 states. [2021-06-12 15:23:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27685 to 25523. [2021-06-12 15:23:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25523 states, 25522 states have (on average 3.9933390800094037) internal successors, (101918), 25522 states have internal predecessors, (101918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25523 states to 25523 states and 101918 transitions. [2021-06-12 15:23:17,864 INFO L78 Accepts]: Start accepts. Automaton has 25523 states and 101918 transitions. Word has length 79 [2021-06-12 15:23:17,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:17,864 INFO L482 AbstractCegarLoop]: Abstraction has 25523 states and 101918 transitions. [2021-06-12 15:23:17,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 25523 states and 101918 transitions. [2021-06-12 15:23:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-06-12 15:23:17,896 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:17,896 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:17,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-12 15:23:17,896 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:17,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:17,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1780660894, now seen corresponding path program 1 times [2021-06-12 15:23:17,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:17,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283333078] [2021-06-12 15:23:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:18,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:18,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283333078] [2021-06-12 15:23:18,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283333078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:18,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:18,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 15:23:18,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686394287] [2021-06-12 15:23:18,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 15:23:18,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:18,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 15:23:18,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-06-12 15:23:18,663 INFO L87 Difference]: Start difference. First operand 25523 states and 101918 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:19,058 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-06-12 15:23:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:21,271 INFO L93 Difference]: Finished difference Result 34270 states and 136437 transitions. [2021-06-12 15:23:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-12 15:23:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-06-12 15:23:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:21,342 INFO L225 Difference]: With dead ends: 34270 [2021-06-12 15:23:21,342 INFO L226 Difference]: Without dead ends: 30232 [2021-06-12 15:23:21,343 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1925.8ms TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2021-06-12 15:23:21,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30232 states. [2021-06-12 15:23:21,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30232 to 26090. [2021-06-12 15:23:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26090 states, 26089 states have (on average 4.030625934301813) internal successors, (105155), 26089 states have internal predecessors, (105155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26090 states to 26090 states and 105155 transitions. [2021-06-12 15:23:21,981 INFO L78 Accepts]: Start accepts. Automaton has 26090 states and 105155 transitions. Word has length 79 [2021-06-12 15:23:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:21,981 INFO L482 AbstractCegarLoop]: Abstraction has 26090 states and 105155 transitions. [2021-06-12 15:23:21,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:21,982 INFO L276 IsEmpty]: Start isEmpty. Operand 26090 states and 105155 transitions. [2021-06-12 15:23:22,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-06-12 15:23:22,014 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:22,014 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:22,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-12 15:23:22,015 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:22,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:22,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1577980420, now seen corresponding path program 2 times [2021-06-12 15:23:22,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:22,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235949447] [2021-06-12 15:23:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:22,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:22,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235949447] [2021-06-12 15:23:22,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235949447] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:22,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:22,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-12 15:23:22,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707346425] [2021-06-12 15:23:22,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-12 15:23:22,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:22,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-12 15:23:22,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-12 15:23:22,750 INFO L87 Difference]: Start difference. First operand 26090 states and 105155 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:23,007 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-06-12 15:23:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:24,477 INFO L93 Difference]: Finished difference Result 25967 states and 103470 transitions. [2021-06-12 15:23:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-12 15:23:24,477 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-06-12 15:23:24,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:24,524 INFO L225 Difference]: With dead ends: 25967 [2021-06-12 15:23:24,525 INFO L226 Difference]: Without dead ends: 21515 [2021-06-12 15:23:24,525 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1347.1ms TimeCoverageRelationStatistics Valid=229, Invalid=1663, Unknown=0, NotChecked=0, Total=1892 [2021-06-12 15:23:24,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21515 states. [2021-06-12 15:23:24,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21515 to 17789. [2021-06-12 15:23:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17789 states, 17788 states have (on average 3.902912075556555) internal successors, (69425), 17788 states have internal predecessors, (69425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 69425 transitions. [2021-06-12 15:23:24,858 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 69425 transitions. Word has length 79 [2021-06-12 15:23:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:24,858 INFO L482 AbstractCegarLoop]: Abstraction has 17789 states and 69425 transitions. [2021-06-12 15:23:24,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 69425 transitions. [2021-06-12 15:23:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:24,880 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:24,880 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:24,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-12 15:23:24,880 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:24,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:24,881 INFO L82 PathProgramCache]: Analyzing trace with hash 852374811, now seen corresponding path program 1 times [2021-06-12 15:23:24,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:24,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736885516] [2021-06-12 15:23:24,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:25,309 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2021-06-12 15:23:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:25,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:25,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736885516] [2021-06-12 15:23:25,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736885516] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:25,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:25,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-12 15:23:25,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96779420] [2021-06-12 15:23:25,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-12 15:23:25,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:25,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-12 15:23:25,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-06-12 15:23:25,312 INFO L87 Difference]: Start difference. First operand 17789 states and 69425 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:25,665 INFO L93 Difference]: Finished difference Result 19726 states and 75766 transitions. [2021-06-12 15:23:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-12 15:23:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:25,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:25,716 INFO L225 Difference]: With dead ends: 19726 [2021-06-12 15:23:25,716 INFO L226 Difference]: Without dead ends: 17781 [2021-06-12 15:23:25,717 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 458.8ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-06-12 15:23:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-12 15:23:25,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-12 15:23:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9037682789651296) internal successors, (69409), 17780 states have internal predecessors, (69409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69409 transitions. [2021-06-12 15:23:26,214 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69409 transitions. Word has length 80 [2021-06-12 15:23:26,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:26,214 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69409 transitions. [2021-06-12 15:23:26,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:26,214 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69409 transitions. [2021-06-12 15:23:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:26,236 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:26,236 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:26,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-12 15:23:26,236 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:26,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1670418097, now seen corresponding path program 2 times [2021-06-12 15:23:26,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:26,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704405519] [2021-06-12 15:23:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:26,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:26,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704405519] [2021-06-12 15:23:26,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704405519] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:26,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:26,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:23:26,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955543511] [2021-06-12 15:23:26,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:23:26,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:26,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:23:26,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:23:26,818 INFO L87 Difference]: Start difference. First operand 17781 states and 69409 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:28,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:28,004 INFO L93 Difference]: Finished difference Result 19688 states and 75704 transitions. [2021-06-12 15:23:28,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-12 15:23:28,005 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:28,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:28,042 INFO L225 Difference]: With dead ends: 19688 [2021-06-12 15:23:28,042 INFO L226 Difference]: Without dead ends: 17781 [2021-06-12 15:23:28,043 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1155.2ms TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2021-06-12 15:23:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-12 15:23:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-12 15:23:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.903487064116985) internal successors, (69404), 17780 states have internal predecessors, (69404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69404 transitions. [2021-06-12 15:23:28,484 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69404 transitions. Word has length 80 [2021-06-12 15:23:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:28,484 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69404 transitions. [2021-06-12 15:23:28,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69404 transitions. [2021-06-12 15:23:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:28,513 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:28,513 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:28,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-12 15:23:28,513 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:28,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1383870141, now seen corresponding path program 3 times [2021-06-12 15:23:28,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:28,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829415785] [2021-06-12 15:23:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:29,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:29,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829415785] [2021-06-12 15:23:29,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829415785] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:29,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:29,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:23:29,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409588882] [2021-06-12 15:23:29,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:23:29,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:29,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:23:29,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:23:29,050 INFO L87 Difference]: Start difference. First operand 17781 states and 69404 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:30,221 INFO L93 Difference]: Finished difference Result 19677 states and 75680 transitions. [2021-06-12 15:23:30,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-12 15:23:30,221 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:30,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:30,260 INFO L225 Difference]: With dead ends: 19677 [2021-06-12 15:23:30,260 INFO L226 Difference]: Without dead ends: 17781 [2021-06-12 15:23:30,260 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1038.7ms TimeCoverageRelationStatistics Valid=159, Invalid=1173, Unknown=0, NotChecked=0, Total=1332 [2021-06-12 15:23:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-12 15:23:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-12 15:23:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.90326209223847) internal successors, (69400), 17780 states have internal predecessors, (69400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69400 transitions. [2021-06-12 15:23:30,570 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69400 transitions. Word has length 80 [2021-06-12 15:23:30,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:30,570 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69400 transitions. [2021-06-12 15:23:30,570 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:30,570 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69400 transitions. [2021-06-12 15:23:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:30,693 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:30,693 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:30,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-12 15:23:30,693 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:30,694 INFO L82 PathProgramCache]: Analyzing trace with hash 2049848031, now seen corresponding path program 4 times [2021-06-12 15:23:30,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:30,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461137472] [2021-06-12 15:23:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:31,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:31,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461137472] [2021-06-12 15:23:31,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461137472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:31,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:31,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:23:31,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287725276] [2021-06-12 15:23:31,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:23:31,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:31,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:23:31,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:23:31,201 INFO L87 Difference]: Start difference. First operand 17781 states and 69400 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:32,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:32,688 INFO L93 Difference]: Finished difference Result 19717 states and 75740 transitions. [2021-06-12 15:23:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-12 15:23:32,688 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:32,728 INFO L225 Difference]: With dead ends: 19717 [2021-06-12 15:23:32,728 INFO L226 Difference]: Without dead ends: 17831 [2021-06-12 15:23:32,728 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1384.4ms TimeCoverageRelationStatistics Valid=226, Invalid=1666, Unknown=0, NotChecked=0, Total=1892 [2021-06-12 15:23:32,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17831 states. [2021-06-12 15:23:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17831 to 17781. [2021-06-12 15:23:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9031496062992126) internal successors, (69398), 17780 states have internal predecessors, (69398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69398 transitions. [2021-06-12 15:23:33,159 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69398 transitions. Word has length 80 [2021-06-12 15:23:33,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:33,159 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69398 transitions. [2021-06-12 15:23:33,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69398 transitions. [2021-06-12 15:23:33,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:33,187 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:33,188 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:33,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-12 15:23:33,188 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:33,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:33,188 INFO L82 PathProgramCache]: Analyzing trace with hash 458383959, now seen corresponding path program 5 times [2021-06-12 15:23:33,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:33,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268272430] [2021-06-12 15:23:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:33,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:33,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268272430] [2021-06-12 15:23:33,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268272430] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:33,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:33,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:23:33,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119703076] [2021-06-12 15:23:33,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:23:33,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:33,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:23:33,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:23:33,566 INFO L87 Difference]: Start difference. First operand 17781 states and 69398 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:34,522 INFO L93 Difference]: Finished difference Result 19662 states and 75647 transitions. [2021-06-12 15:23:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-12 15:23:34,522 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:34,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:34,561 INFO L225 Difference]: With dead ends: 19662 [2021-06-12 15:23:34,561 INFO L226 Difference]: Without dead ends: 17781 [2021-06-12 15:23:34,562 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 630.7ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 15:23:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-12 15:23:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-12 15:23:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9021372328458943) internal successors, (69380), 17780 states have internal predecessors, (69380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69380 transitions. [2021-06-12 15:23:34,855 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69380 transitions. Word has length 80 [2021-06-12 15:23:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:34,855 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69380 transitions. [2021-06-12 15:23:34,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:34,855 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69380 transitions. [2021-06-12 15:23:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:34,876 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:34,876 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:34,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-12 15:23:34,877 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:34,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:34,877 INFO L82 PathProgramCache]: Analyzing trace with hash 627178821, now seen corresponding path program 6 times [2021-06-12 15:23:34,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:34,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140232154] [2021-06-12 15:23:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:35,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:35,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140232154] [2021-06-12 15:23:35,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140232154] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:35,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:35,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-12 15:23:35,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432153481] [2021-06-12 15:23:35,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-12 15:23:35,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:35,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-12 15:23:35,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-06-12 15:23:35,528 INFO L87 Difference]: Start difference. First operand 17781 states and 69380 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:36,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:36,540 INFO L93 Difference]: Finished difference Result 19649 states and 75620 transitions. [2021-06-12 15:23:36,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-12 15:23:36,540 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:36,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:36,667 INFO L225 Difference]: With dead ends: 19649 [2021-06-12 15:23:36,668 INFO L226 Difference]: Without dead ends: 17813 [2021-06-12 15:23:36,668 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1021.4ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-06-12 15:23:36,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17813 states. [2021-06-12 15:23:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17813 to 17781. [2021-06-12 15:23:36,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.900337457817773) internal successors, (69348), 17780 states have internal predecessors, (69348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69348 transitions. [2021-06-12 15:23:36,967 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69348 transitions. Word has length 80 [2021-06-12 15:23:36,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:36,968 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69348 transitions. [2021-06-12 15:23:36,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:36,968 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69348 transitions. [2021-06-12 15:23:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:36,990 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:36,990 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:36,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-12 15:23:36,990 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:36,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1024857715, now seen corresponding path program 7 times [2021-06-12 15:23:36,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:36,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734058165] [2021-06-12 15:23:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:37,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:37,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734058165] [2021-06-12 15:23:37,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734058165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:37,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:37,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-12 15:23:37,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224393974] [2021-06-12 15:23:37,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-12 15:23:37,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:37,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-12 15:23:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-12 15:23:37,666 INFO L87 Difference]: Start difference. First operand 17781 states and 69348 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:38,857 INFO L93 Difference]: Finished difference Result 19405 states and 74898 transitions. [2021-06-12 15:23:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-12 15:23:38,858 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:38,898 INFO L225 Difference]: With dead ends: 19405 [2021-06-12 15:23:38,898 INFO L226 Difference]: Without dead ends: 17781 [2021-06-12 15:23:38,899 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1076.1ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-06-12 15:23:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-12 15:23:39,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-12 15:23:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.89673790776153) internal successors, (69284), 17780 states have internal predecessors, (69284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69284 transitions. [2021-06-12 15:23:39,203 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69284 transitions. Word has length 80 [2021-06-12 15:23:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:39,204 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69284 transitions. [2021-06-12 15:23:39,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:39,204 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69284 transitions. [2021-06-12 15:23:39,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:39,226 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:39,226 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:39,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-12 15:23:39,226 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:39,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:39,226 INFO L82 PathProgramCache]: Analyzing trace with hash 402464423, now seen corresponding path program 8 times [2021-06-12 15:23:39,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:39,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233631857] [2021-06-12 15:23:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:40,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:40,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233631857] [2021-06-12 15:23:40,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233631857] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:40,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:40,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 15:23:40,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136718464] [2021-06-12 15:23:40,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 15:23:40,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:40,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 15:23:40,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-12 15:23:40,006 INFO L87 Difference]: Start difference. First operand 17781 states and 69284 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:41,664 INFO L93 Difference]: Finished difference Result 19341 states and 74562 transitions. [2021-06-12 15:23:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-12 15:23:41,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:41,692 INFO L225 Difference]: With dead ends: 19341 [2021-06-12 15:23:41,692 INFO L226 Difference]: Without dead ends: 12909 [2021-06-12 15:23:41,693 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1313.5ms TimeCoverageRelationStatistics Valid=240, Invalid=1922, Unknown=0, NotChecked=0, Total=2162 [2021-06-12 15:23:41,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2021-06-12 15:23:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12909. [2021-06-12 15:23:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12909 states, 12908 states have (on average 3.6977068484660673) internal successors, (47730), 12908 states have internal predecessors, (47730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:41,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12909 states to 12909 states and 47730 transitions. [2021-06-12 15:23:41,902 INFO L78 Accepts]: Start accepts. Automaton has 12909 states and 47730 transitions. Word has length 80 [2021-06-12 15:23:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:41,902 INFO L482 AbstractCegarLoop]: Abstraction has 12909 states and 47730 transitions. [2021-06-12 15:23:41,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12909 states and 47730 transitions. [2021-06-12 15:23:41,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:41,915 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:41,915 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:41,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-12 15:23:41,915 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:41,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:41,915 INFO L82 PathProgramCache]: Analyzing trace with hash 235826553, now seen corresponding path program 9 times [2021-06-12 15:23:41,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:41,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562801051] [2021-06-12 15:23:41,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:42,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:42,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562801051] [2021-06-12 15:23:42,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562801051] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:42,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:42,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-12 15:23:42,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681509283] [2021-06-12 15:23:42,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-12 15:23:42,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:42,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-12 15:23:42,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-12 15:23:42,566 INFO L87 Difference]: Start difference. First operand 12909 states and 47730 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:43,717 INFO L93 Difference]: Finished difference Result 14629 states and 53556 transitions. [2021-06-12 15:23:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-12 15:23:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:43,741 INFO L225 Difference]: With dead ends: 14629 [2021-06-12 15:23:43,741 INFO L226 Difference]: Without dead ends: 12909 [2021-06-12 15:23:43,741 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1104.8ms TimeCoverageRelationStatistics Valid=244, Invalid=1736, Unknown=0, NotChecked=0, Total=1980 [2021-06-12 15:23:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2021-06-12 15:23:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12909. [2021-06-12 15:23:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12909 states, 12908 states have (on average 3.6958475364115277) internal successors, (47706), 12908 states have internal predecessors, (47706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12909 states to 12909 states and 47706 transitions. [2021-06-12 15:23:43,931 INFO L78 Accepts]: Start accepts. Automaton has 12909 states and 47706 transitions. Word has length 80 [2021-06-12 15:23:43,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:43,932 INFO L482 AbstractCegarLoop]: Abstraction has 12909 states and 47706 transitions. [2021-06-12 15:23:43,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 12909 states and 47706 transitions. [2021-06-12 15:23:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:43,944 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:43,944 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:43,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-12 15:23:43,944 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash 225964533, now seen corresponding path program 10 times [2021-06-12 15:23:43,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:43,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105898584] [2021-06-12 15:23:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:44,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:44,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105898584] [2021-06-12 15:23:44,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105898584] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:44,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:44,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-12 15:23:44,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448833986] [2021-06-12 15:23:44,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-12 15:23:44,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:44,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-12 15:23:44,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-06-12 15:23:44,260 INFO L87 Difference]: Start difference. First operand 12909 states and 47706 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:44,816 INFO L93 Difference]: Finished difference Result 14817 states and 54002 transitions. [2021-06-12 15:23:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-12 15:23:44,816 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:44,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:44,841 INFO L225 Difference]: With dead ends: 14817 [2021-06-12 15:23:44,841 INFO L226 Difference]: Without dead ends: 12909 [2021-06-12 15:23:44,842 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 472.5ms TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2021-06-12 15:23:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2021-06-12 15:23:45,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12909. [2021-06-12 15:23:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12909 states, 12908 states have (on average 3.695770065075922) internal successors, (47705), 12908 states have internal predecessors, (47705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12909 states to 12909 states and 47705 transitions. [2021-06-12 15:23:45,120 INFO L78 Accepts]: Start accepts. Automaton has 12909 states and 47705 transitions. Word has length 80 [2021-06-12 15:23:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:45,120 INFO L482 AbstractCegarLoop]: Abstraction has 12909 states and 47705 transitions. [2021-06-12 15:23:45,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 12909 states and 47705 transitions. [2021-06-12 15:23:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 15:23:45,133 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:45,133 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:45,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-12 15:23:45,133 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:45,133 INFO L82 PathProgramCache]: Analyzing trace with hash 457310543, now seen corresponding path program 11 times [2021-06-12 15:23:45,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:45,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465240449] [2021-06-12 15:23:45,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:45,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:45,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465240449] [2021-06-12 15:23:45,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465240449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:45,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:45,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-12 15:23:45,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298917066] [2021-06-12 15:23:45,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-12 15:23:45,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:45,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-12 15:23:45,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-06-12 15:23:45,460 INFO L87 Difference]: Start difference. First operand 12909 states and 47705 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:46,034 INFO L93 Difference]: Finished difference Result 11693 states and 41783 transitions. [2021-06-12 15:23:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-12 15:23:46,034 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-12 15:23:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:46,052 INFO L225 Difference]: With dead ends: 11693 [2021-06-12 15:23:46,052 INFO L226 Difference]: Without dead ends: 9756 [2021-06-12 15:23:46,052 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 477.7ms TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-06-12 15:23:46,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9756 states. [2021-06-12 15:23:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9756 to 9756. [2021-06-12 15:23:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 9755 states have (on average 3.6302409021014865) internal successors, (35413), 9755 states have internal predecessors, (35413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 35413 transitions. [2021-06-12 15:23:46,188 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 35413 transitions. Word has length 80 [2021-06-12 15:23:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:46,188 INFO L482 AbstractCegarLoop]: Abstraction has 9756 states and 35413 transitions. [2021-06-12 15:23:46,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 35413 transitions. [2021-06-12 15:23:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:46,200 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:46,200 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:46,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-12 15:23:46,201 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:46,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:46,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1119194606, now seen corresponding path program 1 times [2021-06-12 15:23:46,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:46,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16022685] [2021-06-12 15:23:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:46,720 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-12 15:23:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:46,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:46,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16022685] [2021-06-12 15:23:46,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16022685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:46,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:46,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:23:46,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978262433] [2021-06-12 15:23:46,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:23:46,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:23:46,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:23:46,775 INFO L87 Difference]: Start difference. First operand 9756 states and 35413 transitions. Second operand has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:47,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:47,460 INFO L93 Difference]: Finished difference Result 11478 states and 41516 transitions. [2021-06-12 15:23:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-12 15:23:47,464 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:47,483 INFO L225 Difference]: With dead ends: 11478 [2021-06-12 15:23:47,484 INFO L226 Difference]: Without dead ends: 10686 [2021-06-12 15:23:47,484 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 641.2ms TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2021-06-12 15:23:47,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2021-06-12 15:23:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 9798. [2021-06-12 15:23:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 9797 states have (on average 3.6236603041747473) internal successors, (35501), 9797 states have internal predecessors, (35501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 35501 transitions. [2021-06-12 15:23:47,631 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 35501 transitions. Word has length 82 [2021-06-12 15:23:47,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:47,631 INFO L482 AbstractCegarLoop]: Abstraction has 9798 states and 35501 transitions. [2021-06-12 15:23:47,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 35501 transitions. [2021-06-12 15:23:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:47,642 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:47,642 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:47,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-12 15:23:47,642 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:47,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:47,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2146104382, now seen corresponding path program 1 times [2021-06-12 15:23:47,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:47,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213219791] [2021-06-12 15:23:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:48,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:48,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213219791] [2021-06-12 15:23:48,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213219791] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:48,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:48,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-12 15:23:48,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231178671] [2021-06-12 15:23:48,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-12 15:23:48,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:48,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-12 15:23:48,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-06-12 15:23:48,115 INFO L87 Difference]: Start difference. First operand 9798 states and 35501 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:48,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:48,915 INFO L93 Difference]: Finished difference Result 10512 states and 37844 transitions. [2021-06-12 15:23:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 15:23:48,916 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:48,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:48,934 INFO L225 Difference]: With dead ends: 10512 [2021-06-12 15:23:48,934 INFO L226 Difference]: Without dead ends: 9744 [2021-06-12 15:23:48,935 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 751.2ms TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 15:23:48,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-06-12 15:23:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-06-12 15:23:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9743 states have (on average 3.631427691676075) internal successors, (35381), 9743 states have internal predecessors, (35381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 35381 transitions. [2021-06-12 15:23:49,081 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 35381 transitions. Word has length 82 [2021-06-12 15:23:49,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:49,081 INFO L482 AbstractCegarLoop]: Abstraction has 9744 states and 35381 transitions. [2021-06-12 15:23:49,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 35381 transitions. [2021-06-12 15:23:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:49,091 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:49,091 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:49,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-12 15:23:49,092 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:49,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:49,092 INFO L82 PathProgramCache]: Analyzing trace with hash 877880874, now seen corresponding path program 2 times [2021-06-12 15:23:49,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:49,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507075859] [2021-06-12 15:23:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:49,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:49,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507075859] [2021-06-12 15:23:49,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507075859] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:49,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:49,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 15:23:49,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492991842] [2021-06-12 15:23:49,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 15:23:49,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:49,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 15:23:49,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-06-12 15:23:49,451 INFO L87 Difference]: Start difference. First operand 9744 states and 35381 transitions. Second operand has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:50,246 INFO L93 Difference]: Finished difference Result 11475 states and 41508 transitions. [2021-06-12 15:23:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 15:23:50,246 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:50,266 INFO L225 Difference]: With dead ends: 11475 [2021-06-12 15:23:50,266 INFO L226 Difference]: Without dead ends: 10683 [2021-06-12 15:23:50,266 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 608.5ms TimeCoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2021-06-12 15:23:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2021-06-12 15:23:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9795. [2021-06-12 15:23:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9795 states, 9794 states have (on average 3.6239534408821727) internal successors, (35493), 9794 states have internal predecessors, (35493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 35493 transitions. [2021-06-12 15:23:50,421 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 35493 transitions. Word has length 82 [2021-06-12 15:23:50,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:50,421 INFO L482 AbstractCegarLoop]: Abstraction has 9795 states and 35493 transitions. [2021-06-12 15:23:50,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 35493 transitions. [2021-06-12 15:23:50,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:50,432 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:50,432 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:50,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-12 15:23:50,432 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:50,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1907549182, now seen corresponding path program 2 times [2021-06-12 15:23:50,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:50,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731832317] [2021-06-12 15:23:50,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:50,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:50,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731832317] [2021-06-12 15:23:50,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731832317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:50,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:50,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-12 15:23:50,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564174451] [2021-06-12 15:23:50,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-12 15:23:50,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:50,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-12 15:23:50,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-06-12 15:23:50,788 INFO L87 Difference]: Start difference. First operand 9795 states and 35493 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:51,544 INFO L93 Difference]: Finished difference Result 10509 states and 37836 transitions. [2021-06-12 15:23:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-12 15:23:51,544 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:51,562 INFO L225 Difference]: With dead ends: 10509 [2021-06-12 15:23:51,562 INFO L226 Difference]: Without dead ends: 9753 [2021-06-12 15:23:51,562 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 652.1ms TimeCoverageRelationStatistics Valid=142, Invalid=1118, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 15:23:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9753 states. [2021-06-12 15:23:51,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9753 to 9753. [2021-06-12 15:23:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9753 states, 9752 states have (on average 3.6302296964725183) internal successors, (35402), 9752 states have internal predecessors, (35402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:51,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9753 states to 9753 states and 35402 transitions. [2021-06-12 15:23:51,702 INFO L78 Accepts]: Start accepts. Automaton has 9753 states and 35402 transitions. Word has length 82 [2021-06-12 15:23:51,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:51,702 INFO L482 AbstractCegarLoop]: Abstraction has 9753 states and 35402 transitions. [2021-06-12 15:23:51,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:51,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9753 states and 35402 transitions. [2021-06-12 15:23:51,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:51,712 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:51,712 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:51,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-12 15:23:51,713 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:51,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:51,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1212865102, now seen corresponding path program 3 times [2021-06-12 15:23:51,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:51,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376584044] [2021-06-12 15:23:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:52,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:52,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376584044] [2021-06-12 15:23:52,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376584044] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:52,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:52,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-12 15:23:52,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064477528] [2021-06-12 15:23:52,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-12 15:23:52,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:52,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-12 15:23:52,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-06-12 15:23:52,483 INFO L87 Difference]: Start difference. First operand 9753 states and 35402 transitions. Second operand has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:53,763 INFO L93 Difference]: Finished difference Result 11532 states and 41669 transitions. [2021-06-12 15:23:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-12 15:23:53,763 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:53,783 INFO L225 Difference]: With dead ends: 11532 [2021-06-12 15:23:53,783 INFO L226 Difference]: Without dead ends: 10740 [2021-06-12 15:23:53,783 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1416.3ms TimeCoverageRelationStatistics Valid=178, Invalid=1462, Unknown=0, NotChecked=0, Total=1640 [2021-06-12 15:23:53,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2021-06-12 15:23:53,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 9837. [2021-06-12 15:23:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9837 states, 9836 states have (on average 3.6216958113054085) internal successors, (35623), 9836 states have internal predecessors, (35623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9837 states to 9837 states and 35623 transitions. [2021-06-12 15:23:53,930 INFO L78 Accepts]: Start accepts. Automaton has 9837 states and 35623 transitions. Word has length 82 [2021-06-12 15:23:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:53,930 INFO L482 AbstractCegarLoop]: Abstraction has 9837 states and 35623 transitions. [2021-06-12 15:23:53,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 9837 states and 35623 transitions. [2021-06-12 15:23:53,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:53,941 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:53,941 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:53,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-12 15:23:53,941 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:53,941 INFO L82 PathProgramCache]: Analyzing trace with hash -183196794, now seen corresponding path program 3 times [2021-06-12 15:23:53,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:53,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002672240] [2021-06-12 15:23:53,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:54,666 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:54,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002672240] [2021-06-12 15:23:54,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002672240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:54,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:54,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-12 15:23:54,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917762529] [2021-06-12 15:23:54,667 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-12 15:23:54,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:54,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-12 15:23:54,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-06-12 15:23:54,667 INFO L87 Difference]: Start difference. First operand 9837 states and 35623 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:56,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:56,130 INFO L93 Difference]: Finished difference Result 10566 states and 37997 transitions. [2021-06-12 15:23:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-12 15:23:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:56,149 INFO L225 Difference]: With dead ends: 10566 [2021-06-12 15:23:56,150 INFO L226 Difference]: Without dead ends: 9813 [2021-06-12 15:23:56,150 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1454.9ms TimeCoverageRelationStatistics Valid=184, Invalid=1622, Unknown=0, NotChecked=0, Total=1806 [2021-06-12 15:23:56,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9813 states. [2021-06-12 15:23:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9813 to 9798. [2021-06-12 15:23:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 9797 states have (on average 3.626110033683781) internal successors, (35525), 9797 states have internal predecessors, (35525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 35525 transitions. [2021-06-12 15:23:56,290 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 35525 transitions. Word has length 82 [2021-06-12 15:23:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:56,290 INFO L482 AbstractCegarLoop]: Abstraction has 9798 states and 35525 transitions. [2021-06-12 15:23:56,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 35525 transitions. [2021-06-12 15:23:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:56,301 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:56,301 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:56,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-12 15:23:56,301 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:56,301 INFO L82 PathProgramCache]: Analyzing trace with hash -275191676, now seen corresponding path program 4 times [2021-06-12 15:23:56,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:56,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48699446] [2021-06-12 15:23:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:56,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:56,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48699446] [2021-06-12 15:23:56,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48699446] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:56,808 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:56,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-12 15:23:56,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78323093] [2021-06-12 15:23:56,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-12 15:23:56,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:56,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-12 15:23:56,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-06-12 15:23:56,809 INFO L87 Difference]: Start difference. First operand 9798 states and 35525 transitions. Second operand has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:57,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:23:57,956 INFO L93 Difference]: Finished difference Result 11496 states and 41579 transitions. [2021-06-12 15:23:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-12 15:23:57,956 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:23:57,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:23:57,977 INFO L225 Difference]: With dead ends: 11496 [2021-06-12 15:23:57,977 INFO L226 Difference]: Without dead ends: 10704 [2021-06-12 15:23:57,978 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 991.3ms TimeCoverageRelationStatistics Valid=204, Invalid=1436, Unknown=0, NotChecked=0, Total=1640 [2021-06-12 15:23:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10704 states. [2021-06-12 15:23:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10704 to 9816. [2021-06-12 15:23:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9816 states, 9815 states have (on average 3.623433520122262) internal successors, (35564), 9815 states have internal predecessors, (35564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:58,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9816 states to 9816 states and 35564 transitions. [2021-06-12 15:23:58,160 INFO L78 Accepts]: Start accepts. Automaton has 9816 states and 35564 transitions. Word has length 82 [2021-06-12 15:23:58,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:23:58,160 INFO L482 AbstractCegarLoop]: Abstraction has 9816 states and 35564 transitions. [2021-06-12 15:23:58,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:23:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 9816 states and 35564 transitions. [2021-06-12 15:23:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:23:58,171 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:23:58,171 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:23:58,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-12 15:23:58,171 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:23:58,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:23:58,172 INFO L82 PathProgramCache]: Analyzing trace with hash 754476632, now seen corresponding path program 4 times [2021-06-12 15:23:58,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:23:58,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221633524] [2021-06-12 15:23:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:23:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 15:23:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 15:23:58,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 15:23:58,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221633524] [2021-06-12 15:23:58,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221633524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 15:23:58,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 15:23:58,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-12 15:23:58,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62369648] [2021-06-12 15:23:58,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-12 15:23:58,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 15:23:58,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-12 15:23:58,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-06-12 15:23:58,877 INFO L87 Difference]: Start difference. First operand 9816 states and 35564 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:24:00,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 15:24:00,000 INFO L93 Difference]: Finished difference Result 11232 states and 40212 transitions. [2021-06-12 15:24:00,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-12 15:24:00,001 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-12 15:24:00,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 15:24:00,020 INFO L225 Difference]: With dead ends: 11232 [2021-06-12 15:24:00,020 INFO L226 Difference]: Without dead ends: 9792 [2021-06-12 15:24:00,021 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 1177.9ms TimeCoverageRelationStatistics Valid=196, Invalid=1526, Unknown=0, NotChecked=0, Total=1722 [2021-06-12 15:24:00,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9792 states. [2021-06-12 15:24:00,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9792 to 9780. [2021-06-12 15:24:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9780 states, 9779 states have (on average 3.6183658860824215) internal successors, (35384), 9779 states have internal predecessors, (35384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:24:00,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9780 states to 9780 states and 35384 transitions. [2021-06-12 15:24:00,197 INFO L78 Accepts]: Start accepts. Automaton has 9780 states and 35384 transitions. Word has length 82 [2021-06-12 15:24:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 15:24:00,197 INFO L482 AbstractCegarLoop]: Abstraction has 9780 states and 35384 transitions. [2021-06-12 15:24:00,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 15:24:00,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9780 states and 35384 transitions. [2021-06-12 15:24:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-12 15:24:00,210 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 15:24:00,210 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 15:24:00,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-12 15:24:00,210 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 15:24:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 15:24:00,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1007010934, now seen corresponding path program 5 times [2021-06-12 15:24:00,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 15:24:00,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502897348] [2021-06-12 15:24:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 15:24:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat