/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-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:33:20,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:33:20,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:33:20,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 07:33:20,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 07:33:20,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 07:33:20,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 07:33:20,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 07:33:20,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 07:33:20,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 07:33:20,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 07:33:20,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 07:33:20,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 07:33:20,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 07:33:20,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 07:33:20,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 07:33:20,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 07:33:20,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 07:33:20,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 07:33:20,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 07:33:20,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 07:33:20,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 07:33:20,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 07:33:20,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 07:33:20,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 07:33:20,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 07:33:20,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 07:33:20,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 07:33:20,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 07:33:20,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 07:33:20,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 07:33:20,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 07:33:20,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 07:33:20,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:33:20,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:33:20,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:33:20,758 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-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:33:20,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:33:20,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:33:20,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:33:20,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:33:20,790 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:33:20,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:33:20,790 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:33:20,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:33:20,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:33:20,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:33:20,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:33:20,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:33:20,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:33:20,791 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:33:20,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:33:20,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:33:20,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:33:20,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:33:20,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:33:20,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:33:20,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:33:20,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:33:20,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:33:20,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:33:20,794 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:33:20,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:33:20,794 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:33:21,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:33:21,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:33:21,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:33:21,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 07:33:21,039 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 07:33:21,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2021-08-13 07:33:21,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9f42e32/c518ffcd52934c35a9489f84093da740/FLAGa28a01225 [2021-08-13 07:33:21,377 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 07:33:21,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2021-08-13 07:33:21,378 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-13 07:33:21,378 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-13 07:33:21,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9f42e32/c518ffcd52934c35a9489f84093da740/FLAGa28a01225 [2021-08-13 07:33:21,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9f42e32/c518ffcd52934c35a9489f84093da740 [2021-08-13 07:33:21,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:33:21,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 07:33:21,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 07:33:21,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 07:33:21,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 07:33:21,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20920513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21, skipping insertion in model container [2021-08-13 07:33:21,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 07:33:21,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 07:33:21,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 07:33:21,542 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 07:33:21,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 07:33:21,564 INFO L208 MainTranslator]: Completed translation [2021-08-13 07:33:21,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21 WrapperNode [2021-08-13 07:33:21,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 07:33:21,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:33:21,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:33:21,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:33:21,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:33:21,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:33:21,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:33:21,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:33:21,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (1/1) ... [2021-08-13 07:33:21,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:33:21,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:33:21,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:33:21,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:33:21,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (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 [2021-08-13 07:33:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 07:33:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure worker_thread [2021-08-13 07:33:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_thread [2021-08-13 07:33:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:33:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:33:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 07:33:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 07:33:21,670 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 07:33:21,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:33:21,844 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-13 07:33:21,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:33:21 BoogieIcfgContainer [2021-08-13 07:33:21,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:33:21,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:33:21,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:33:21,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:33:21,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 07:33:21" (1/3) ... [2021-08-13 07:33:21,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2882c4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:33:21, skipping insertion in model container [2021-08-13 07:33:21,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 07:33:21" (2/3) ... [2021-08-13 07:33:21,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2882c4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:33:21, skipping insertion in model container [2021-08-13 07:33:21,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:33:21" (3/3) ... [2021-08-13 07:33:21,849 INFO L111 eAbstractionObserver]: Analyzing ICFG mainThreadTerminates.c [2021-08-13 07:33:21,869 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:33:21,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:33:21,870 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:33:21,891 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,892 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,893 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,893 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,893 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,893 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,893 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,893 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,894 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,894 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,894 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,894 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,894 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,894 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,895 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,895 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,895 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,895 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,897 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,897 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,897 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,897 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,897 WARN L313 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,897 WARN L313 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 07:33:21,910 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 07:33:21,925 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 07:33:21,939 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:33:21,940 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:33:21,940 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:33:21,940 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:33:21,940 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:33:21,940 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:33:21,940 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:33:21,940 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:33:21,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 61 flow [2021-08-13 07:33:21,959 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2021-08-13 07:33:21,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:33:21,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 2/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2021-08-13 07:33:21,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 28 transitions, 61 flow [2021-08-13 07:33:21,964 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 25 transitions, 53 flow [2021-08-13 07:33:21,982 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-08-13 07:33:21,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:33:21,986 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:33:21,987 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:33:21,987 INFO L430 AbstractCegarLoop]: === Iteration 1 === [worker_threadErr0ASSERT_VIOLATIONASSERT, worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:33:21,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:33:21,992 INFO L82 PathProgramCache]: Analyzing trace with hash 481569023, now seen corresponding path program 1 times [2021-08-13 07:33:21,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:33:21,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030991532] [2021-08-13 07:33:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:33:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:33:22,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:22,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:33:22,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030991532] [2021-08-13 07:33:22,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030991532] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:33:22,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:33:22,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 07:33:22,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844696885] [2021-08-13 07:33:22,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-08-13 07:33:22,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:33:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-13 07:33:22,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-13 07:33:22,129 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 28 [2021-08-13 07:33:22,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 53 flow. Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:33:22,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 28 [2021-08-13 07:33:22,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:33:22,152 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-08-13 07:33:22,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 07:33:22,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 24 events. 1/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-08-13 07:33:22,154 INFO L132 encePairwiseOnDemand]: 27/28 looper letters, 0 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2021-08-13 07:33:22,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 51 flow [2021-08-13 07:33:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-13 07:33:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-08-13 07:33:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 53 transitions. [2021-08-13 07:33:22,162 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9464285714285714 [2021-08-13 07:33:22,162 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 53 transitions. [2021-08-13 07:33:22,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 53 transitions. [2021-08-13 07:33:22,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:33:22,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 53 transitions. [2021-08-13 07:33:22,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,170 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,171 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-08-13 07:33:22,171 INFO L482 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 51 flow [2021-08-13 07:33:22,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,171 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:33:22,172 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:33:22,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 07:33:22,172 INFO L430 AbstractCegarLoop]: === Iteration 2 === [worker_threadErr0ASSERT_VIOLATIONASSERT, worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:33:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:33:22,173 INFO L82 PathProgramCache]: Analyzing trace with hash 481569054, now seen corresponding path program 1 times [2021-08-13 07:33:22,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:33:22,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260481603] [2021-08-13 07:33:22,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:33:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:33:22,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:22,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:33:22,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260481603] [2021-08-13 07:33:22,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260481603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:33:22,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:33:22,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:33:22,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893286998] [2021-08-13 07:33:22,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:33:22,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:33:22,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:33:22,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:33:22,245 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 28 [2021-08-13 07:33:22,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2021-08-13 07:33:22,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:33:22,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 28 [2021-08-13 07:33:22,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:33:22,275 INFO L129 PetriNetUnfolder]: 1/27 cut-off events. [2021-08-13 07:33:22,276 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 07:33:22,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 27 events. 1/27 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 38. Up to 7 conditions per place. [2021-08-13 07:33:22,277 INFO L132 encePairwiseOnDemand]: 25/28 looper letters, 7 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2021-08-13 07:33:22,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 75 flow [2021-08-13 07:33:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:33:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:33:22,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2021-08-13 07:33:22,280 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-08-13 07:33:22,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 70 transitions. [2021-08-13 07:33:22,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 70 transitions. [2021-08-13 07:33:22,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:33:22,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 70 transitions. [2021-08-13 07:33:22,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,284 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2021-08-13 07:33:22,284 INFO L482 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 75 flow [2021-08-13 07:33:22,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2021-08-13 07:33:22,284 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:33:22,284 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:33:22,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 07:33:22,284 INFO L430 AbstractCegarLoop]: === Iteration 3 === [worker_threadErr0ASSERT_VIOLATIONASSERT, worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:33:22,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:33:22,285 INFO L82 PathProgramCache]: Analyzing trace with hash -401459390, now seen corresponding path program 1 times [2021-08-13 07:33:22,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:33:22,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538749022] [2021-08-13 07:33:22,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:33:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:33:22,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:22,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:33:22,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538749022] [2021-08-13 07:33:22,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538749022] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 07:33:22,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90596532] [2021-08-13 07:33:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 07:33:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:33:22,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-13 07:33:22,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 07:33:22,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:22,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:22,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:22,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 07:33:22,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:22,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:22,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:22,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 07:33:22,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,495 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-08-13 07:33:22,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:22,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90596532] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 07:33:22,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 07:33:22,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-08-13 07:33:22,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981436822] [2021-08-13 07:33:22,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 07:33:22,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:33:22,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 07:33:22,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-13 07:33:22,499 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 07:33:22,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 75 flow. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:33:22,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 07:33:22,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:33:22,549 INFO L129 PetriNetUnfolder]: 1/31 cut-off events. [2021-08-13 07:33:22,550 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-13 07:33:22,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 31 events. 1/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 59. Up to 10 conditions per place. [2021-08-13 07:33:22,550 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 9 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-08-13 07:33:22,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 117 flow [2021-08-13 07:33:22,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 07:33:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 07:33:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 129 transitions. [2021-08-13 07:33:22,553 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2021-08-13 07:33:22,553 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 129 transitions. [2021-08-13 07:33:22,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 129 transitions. [2021-08-13 07:33:22,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:33:22,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 129 transitions. [2021-08-13 07:33:22,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,555 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,555 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-08-13 07:33:22,555 INFO L482 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 117 flow [2021-08-13 07:33:22,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,556 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:33:22,556 INFO L266 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:33:22,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-13 07:33:22,758 INFO L430 AbstractCegarLoop]: === Iteration 4 === [worker_threadErr0ASSERT_VIOLATIONASSERT, worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:33:22,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:33:22,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1682664602, now seen corresponding path program 2 times [2021-08-13 07:33:22,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:33:22,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098923098] [2021-08-13 07:33:22,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:33:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:33:22,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:22,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:33:22,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098923098] [2021-08-13 07:33:22,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098923098] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 07:33:22,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434501396] [2021-08-13 07:33:22,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 07:33:22,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 07:33:22,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 07:33:22,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-13 07:33:22,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 07:33:22,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:22,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:22,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 07:33:22,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 07:33:22,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 07:33:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 07:33:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:22,993 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-08-13 07:33:22,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:22,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:22,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434501396] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 07:33:22,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 07:33:22,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-08-13 07:33:22,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455089158] [2021-08-13 07:33:22,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 07:33:22,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:33:22,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 07:33:22,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-13 07:33:22,996 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 07:33:22,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 117 flow. Second operand has 9 states, 9 states have (on average 20.666666666666668) internal successors, (186), 9 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:22,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:33:22,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 07:33:22,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:33:23,061 INFO L129 PetriNetUnfolder]: 1/35 cut-off events. [2021-08-13 07:33:23,062 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-08-13 07:33:23,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 35 events. 1/35 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 88. Up to 13 conditions per place. [2021-08-13 07:33:23,062 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 10 selfloop transitions, 8 changer transitions 0/35 dead transitions. [2021-08-13 07:33:23,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 175 flow [2021-08-13 07:33:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 07:33:23,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 07:33:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2021-08-13 07:33:23,064 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.753968253968254 [2021-08-13 07:33:23,064 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 190 transitions. [2021-08-13 07:33:23,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 190 transitions. [2021-08-13 07:33:23,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:33:23,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 190 transitions. [2021-08-13 07:33:23,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.11111111111111) internal successors, (190), 9 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,066 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,066 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 16 predicate places. [2021-08-13 07:33:23,066 INFO L482 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 175 flow [2021-08-13 07:33:23,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 20.666666666666668) internal successors, (186), 9 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,066 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:33:23,067 INFO L266 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:33:23,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 07:33:23,267 INFO L430 AbstractCegarLoop]: === Iteration 5 === [worker_threadErr0ASSERT_VIOLATIONASSERT, worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:33:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:33:23,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1060881014, now seen corresponding path program 3 times [2021-08-13 07:33:23,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:33:23,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497237032] [2021-08-13 07:33:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:33:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:33:23,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:23,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:33:23,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497237032] [2021-08-13 07:33:23,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497237032] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 07:33:23,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673503372] [2021-08-13 07:33:23,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 07:33:23,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-13 07:33:23,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 07:33:23,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-13 07:33:23,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 07:33:23,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:23,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:23,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:23,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 07:33:23,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:23,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:23,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:23,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 07:33:23,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:23,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:23,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:23,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 07:33:23,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:23,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:23,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 07:33:23,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:23,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:23,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:33:23,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 07:33:23,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:23,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 07:33:23,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 07:33:23,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 07:33:23,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:33:23,502 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-08-13 07:33:23,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:33:23,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:33:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:33:23,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673503372] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 07:33:23,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 07:33:23,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-08-13 07:33:23,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333660539] [2021-08-13 07:33:23,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 07:33:23,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:33:23,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 07:33:23,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-08-13 07:33:23,507 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 07:33:23,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 175 flow. Second operand has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 11 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:33:23,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 07:33:23,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:33:23,596 INFO L129 PetriNetUnfolder]: 1/37 cut-off events. [2021-08-13 07:33:23,596 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-08-13 07:33:23,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 37 events. 1/37 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 115. Up to 14 conditions per place. [2021-08-13 07:33:23,596 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 8 selfloop transitions, 12 changer transitions 0/37 dead transitions. [2021-08-13 07:33:23,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 37 transitions, 229 flow [2021-08-13 07:33:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 07:33:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 07:33:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 249 transitions. [2021-08-13 07:33:23,601 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 07:33:23,601 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 249 transitions. [2021-08-13 07:33:23,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 249 transitions. [2021-08-13 07:33:23,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:33:23,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 249 transitions. [2021-08-13 07:33:23,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 20.75) internal successors, (249), 12 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,609 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,609 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 27 predicate places. [2021-08-13 07:33:23,609 INFO L482 AbstractCegarLoop]: Abstraction has has 54 places, 37 transitions, 229 flow [2021-08-13 07:33:23,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 11 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:33:23,609 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:33:23,609 INFO L266 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:33:23,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 07:33:23,828 INFO L430 AbstractCegarLoop]: === Iteration 6 === [worker_threadErr0ASSERT_VIOLATIONASSERT, worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-13 07:33:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:33:23,829 INFO L82 PathProgramCache]: Analyzing trace with hash 602551726, now seen corresponding path program 4 times [2021-08-13 07:33:23,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:33:23,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031627838] [2021-08-13 07:33:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:33:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 07:33:23,845 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 07:33:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 07:33:23,865 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 07:33:23,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 07:33:23,875 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 07:33:23,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 07:33:23,884 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 07:33:23,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 07:33:23 BasicIcfg [2021-08-13 07:33:23,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 07:33:23,918 INFO L168 Benchmark]: Toolchain (without parser) took 2510.23 ms. Allocated memory is still 197.1 MB. Free memory was 160.3 MB in the beginning and 91.1 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.9 MB. Max. memory is 8.0 GB. [2021-08-13 07:33:23,918 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 197.1 MB. Free memory is still 178.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 07:33:23,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.92 ms. Allocated memory is still 197.1 MB. Free memory was 160.1 MB in the beginning and 177.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. [2021-08-13 07:33:23,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.26 ms. Allocated memory is still 197.1 MB. Free memory was 177.8 MB in the beginning and 176.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 07:33:23,918 INFO L168 Benchmark]: Boogie Preprocessor took 17.46 ms. Allocated memory is still 197.1 MB. Free memory was 176.8 MB in the beginning and 175.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 07:33:23,919 INFO L168 Benchmark]: RCFGBuilder took 242.18 ms. Allocated memory is still 197.1 MB. Free memory was 175.7 MB in the beginning and 163.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-08-13 07:33:23,919 INFO L168 Benchmark]: TraceAbstraction took 2072.00 ms. Allocated memory is still 197.1 MB. Free memory was 162.6 MB in the beginning and 91.1 MB in the end (delta: 71.5 MB). Peak memory consumption was 72.1 MB. Max. memory is 8.0 GB. [2021-08-13 07:33:23,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 197.1 MB. Free memory is still 178.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 156.92 ms. Allocated memory is still 197.1 MB. Free memory was 160.1 MB in the beginning and 177.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 17.26 ms. Allocated memory is still 197.1 MB. Free memory was 177.8 MB in the beginning and 176.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.46 ms. Allocated memory is still 197.1 MB. Free memory was 176.8 MB in the beginning and 175.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 242.18 ms. Allocated memory is still 197.1 MB. Free memory was 175.7 MB in the beginning and 163.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2072.00 ms. Allocated memory is still 197.1 MB. Free memory was 162.6 MB in the beginning and 91.1 MB in the end (delta: 71.5 MB). Peak memory consumption was 72.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: assertion can be violated assertion can be violated We found a FailurePath: [L26] 0 pthread_t thread; [L27] FCALL, FORK 0 pthread_create(&thread, NULL, worker_thread, NULL) VAL [arg={0:0}] [L18] 1 int x = 0; VAL [arg={0:0}, arg={0:0}, x=0] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=0] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=1] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=2] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=2] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=3] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=3] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=4] [L19] COND FALSE 1 !(x < 4) VAL [arg={0:0}, arg={0:0}, x=4] [L22] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=4] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 38 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 21.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1939.2ms, OverallIterations: 6, TraceHistogramMax: 4, EmptinessCheckTime: 0.0ms, AutomataDifference: 318.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 26 SDslu, 17 SDs, 0 SdLazy, 79 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 196.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.1ms SsaConstructionTime, 105.0ms SatisfiabilityAnalysisTime, 564.4ms InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 262 SizeOfPredicates, 12 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/44 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...