/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 08:08:37,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 08:08:37,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 08:08:37,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 08:08:37,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 08:08:37,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 08:08:37,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 08:08:37,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 08:08:37,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 08:08:37,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 08:08:37,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 08:08:37,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 08:08:37,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 08:08:37,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 08:08:37,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 08:08:37,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 08:08:37,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 08:08:37,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 08:08:37,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 08:08:37,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 08:08:37,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 08:08:37,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 08:08:37,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 08:08:37,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 08:08:37,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 08:08:37,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 08:08:37,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 08:08:37,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 08:08:37,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 08:08:37,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 08:08:37,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 08:08:37,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 08:08:37,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 08:08:37,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 08:08:37,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 08:08:37,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 08:08:37,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 08:08:37,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 08:08:37,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 08:08:37,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 08:08:37,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 08:08:37,184 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 08:08:37,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 08:08:37,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 08:08:37,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 08:08:37,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 08:08:37,207 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 08:08:37,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 08:08:37,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 08:08:37,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 08:08:37,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 08:08:37,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 08:08:37,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 08:08:37,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 08:08:37,210 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 08:08:37,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 08:08:37,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 08:08:37,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 08:08:37,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 08:08:37,469 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 08:08:37,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench-2.i [2021-03-26 08:08:37,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b2826c6/4e1b47eb2ab64b219707e95ebf6184e3/FLAG9f6ce5356 [2021-03-26 08:08:38,261 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 08:08:38,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench-2.i [2021-03-26 08:08:38,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b2826c6/4e1b47eb2ab64b219707e95ebf6184e3/FLAG9f6ce5356 [2021-03-26 08:08:38,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b2826c6/4e1b47eb2ab64b219707e95ebf6184e3 [2021-03-26 08:08:38,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 08:08:38,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 08:08:38,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 08:08:38,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 08:08:38,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 08:08:38,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174c6745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38, skipping insertion in model container [2021-03-26 08:08:38,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 08:08:38,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 08:08:38,659 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench-2.i[30922,30935] [2021-03-26 08:08:38,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 08:08:38,668 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 08:08:38,700 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench-2.i[30922,30935] [2021-03-26 08:08:38,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 08:08:38,755 INFO L208 MainTranslator]: Completed translation [2021-03-26 08:08:38,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38 WrapperNode [2021-03-26 08:08:38,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 08:08:38,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 08:08:38,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 08:08:38,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 08:08:38,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 08:08:38,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 08:08:38,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 08:08:38,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 08:08:38,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (1/1) ... [2021-03-26 08:08:38,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 08:08:38,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 08:08:38,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 08:08:38,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 08:08:38,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (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 [2021-03-26 08:08:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-03-26 08:08:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-03-26 08:08:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-03-26 08:08:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-03-26 08:08:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 08:08:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 08:08:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 08:08:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 08:08:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 08:08:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 08:08:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 08:08:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 08:08:38,881 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 08:08:39,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 08:08:39,219 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-26 08:08:39,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 08:08:39 BoogieIcfgContainer [2021-03-26 08:08:39,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 08:08:39,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 08:08:39,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 08:08:39,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 08:08:39,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 08:08:38" (1/3) ... [2021-03-26 08:08:39,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6262bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 08:08:39, skipping insertion in model container [2021-03-26 08:08:39,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 08:08:38" (2/3) ... [2021-03-26 08:08:39,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6262bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 08:08:39, skipping insertion in model container [2021-03-26 08:08:39,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 08:08:39" (3/3) ... [2021-03-26 08:08:39,229 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench-2.i [2021-03-26 08:08:39,233 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 08:08:39,236 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 08:08:39,237 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,263 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,264 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,264 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,264 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,264 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,265 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,265 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,265 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,265 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,266 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,266 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,266 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,266 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,267 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,267 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,268 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,268 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,268 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,268 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,268 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,268 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,269 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,269 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,269 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,269 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,270 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,270 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,270 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,271 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,271 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,272 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,272 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,272 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,272 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,272 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,274 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,274 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,274 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,276 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,277 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,277 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,277 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,279 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,279 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,280 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,281 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,281 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,281 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,281 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,283 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,287 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,287 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,287 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,287 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,287 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,287 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 08:08:39,289 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 08:08:39,301 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 08:08:39,314 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 08:08:39,314 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 08:08:39,314 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 08:08:39,314 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 08:08:39,315 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 08:08:39,315 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 08:08:39,315 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 08:08:39,315 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 08:08:39,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-03-26 08:08:39,363 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-03-26 08:08:39,364 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 08:08:39,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 08:08:39,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-03-26 08:08:39,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-03-26 08:08:39,372 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:39,383 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-03-26 08:08:39,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-03-26 08:08:39,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-03-26 08:08:39,408 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-03-26 08:08:39,408 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 08:08:39,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 08:08:39,411 INFO L142 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-26 08:08:40,538 INFO L154 LiptonReduction]: Checked pairs total: 666 [2021-03-26 08:08:40,539 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 08:08:40,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1169 [2021-03-26 08:08:40,546 INFO L129 PetriNetUnfolder]: 1/16 cut-off events. [2021-03-26 08:08:40,547 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 08:08:40,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:40,547 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:40,547 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:40,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:40,550 INFO L82 PathProgramCache]: Analyzing trace with hash -86387381, now seen corresponding path program 1 times [2021-03-26 08:08:40,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:40,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451944801] [2021-03-26 08:08:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:40,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:40,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:40,705 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-03-26 08:08:40,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:40,715 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-03-26 08:08:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:40,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451944801] [2021-03-26 08:08:40,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:08:40,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 08:08:40,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287065483] [2021-03-26 08:08:40,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 08:08:40,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:40,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 08:08:40,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 08:08:40,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2021-03-26 08:08:40,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:40,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:40,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2021-03-26 08:08:40,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:40,793 INFO L129 PetriNetUnfolder]: 40/127 cut-off events. [2021-03-26 08:08:40,793 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 08:08:40,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 127 events. 40/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 473 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 186. Up to 51 conditions per place. [2021-03-26 08:08:40,795 INFO L132 encePairwiseOnDemand]: 93/99 looper letters, 5 selfloop transitions, 7 changer transitions 7/36 dead transitions. [2021-03-26 08:08:40,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 114 flow [2021-03-26 08:08:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:08:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:08:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 388 transitions. [2021-03-26 08:08:40,817 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7838383838383839 [2021-03-26 08:08:40,817 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 388 transitions. [2021-03-26 08:08:40,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 388 transitions. [2021-03-26 08:08:40,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:40,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 388 transitions. [2021-03-26 08:08:40,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:40,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:40,836 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:40,838 INFO L185 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 5 states and 388 transitions. [2021-03-26 08:08:40,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 114 flow [2021-03-26 08:08:40,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 08:08:40,841 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 95 flow [2021-03-26 08:08:40,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-26 08:08:40,842 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-26 08:08:40,842 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:40,843 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 95 flow [2021-03-26 08:08:40,843 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 95 flow [2021-03-26 08:08:40,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 95 flow [2021-03-26 08:08:40,848 INFO L129 PetriNetUnfolder]: 13/64 cut-off events. [2021-03-26 08:08:40,848 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-26 08:08:40,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 64 events. 13/64 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 190 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 103. Up to 14 conditions per place. [2021-03-26 08:08:40,849 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-26 08:08:40,978 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-03-26 08:08:41,201 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-03-26 08:08:41,540 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 08:08:41,642 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-26 08:08:41,835 INFO L154 LiptonReduction]: Checked pairs total: 83 [2021-03-26 08:08:41,835 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 08:08:41,835 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 993 [2021-03-26 08:08:41,836 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 83 flow [2021-03-26 08:08:41,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:41,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:41,836 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:41,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 08:08:41,837 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:41,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1815707967, now seen corresponding path program 1 times [2021-03-26 08:08:41,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:41,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076548673] [2021-03-26 08:08:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:41,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:41,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:41,887 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:08:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:41,892 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-03-26 08:08:41,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:41,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:41,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:41,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076548673] [2021-03-26 08:08:41,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:08:41,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:08:41,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168688744] [2021-03-26 08:08:41,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:08:41,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:41,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:08:41,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:08:41,911 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2021-03-26 08:08:41,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:41,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:41,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2021-03-26 08:08:41,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:41,966 INFO L129 PetriNetUnfolder]: 38/104 cut-off events. [2021-03-26 08:08:41,966 INFO L130 PetriNetUnfolder]: For 87/93 co-relation queries the response was YES. [2021-03-26 08:08:41,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 104 events. 38/104 cut-off events. For 87/93 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 382 event pairs, 2 based on Foata normal form. 8/95 useless extension candidates. Maximal degree in co-relation 262. Up to 54 conditions per place. [2021-03-26 08:08:41,969 INFO L132 encePairwiseOnDemand]: 100/107 looper letters, 5 selfloop transitions, 14 changer transitions 0/30 dead transitions. [2021-03-26 08:08:41,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 160 flow [2021-03-26 08:08:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:08:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:08:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 560 transitions. [2021-03-26 08:08:41,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7476635514018691 [2021-03-26 08:08:41,973 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 560 transitions. [2021-03-26 08:08:41,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 560 transitions. [2021-03-26 08:08:41,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:41,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 560 transitions. [2021-03-26 08:08:41,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:41,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:41,978 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:41,978 INFO L185 Difference]: Start difference. First operand has 26 places, 22 transitions, 83 flow. Second operand 7 states and 560 transitions. [2021-03-26 08:08:41,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 160 flow [2021-03-26 08:08:41,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 08:08:41,981 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 168 flow [2021-03-26 08:08:41,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=168, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-26 08:08:41,981 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-26 08:08:41,981 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:41,981 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 168 flow [2021-03-26 08:08:41,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 168 flow [2021-03-26 08:08:41,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 168 flow [2021-03-26 08:08:41,999 INFO L129 PetriNetUnfolder]: 24/86 cut-off events. [2021-03-26 08:08:41,999 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2021-03-26 08:08:42,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 86 events. 24/86 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 322 event pairs, 3 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 245. Up to 30 conditions per place. [2021-03-26 08:08:42,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-26 08:08:42,125 INFO L154 LiptonReduction]: Checked pairs total: 96 [2021-03-26 08:08:42,125 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 08:08:42,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-03-26 08:08:42,126 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 168 flow [2021-03-26 08:08:42,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:42,127 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:42,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 08:08:42,127 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:42,127 INFO L82 PathProgramCache]: Analyzing trace with hash 289856118, now seen corresponding path program 1 times [2021-03-26 08:08:42,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:42,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130504529] [2021-03-26 08:08:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:42,176 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:42,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,182 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-26 08:08:42,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:42,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:42,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:42,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130504529] [2021-03-26 08:08:42,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:08:42,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 08:08:42,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844927995] [2021-03-26 08:08:42,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:08:42,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:42,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:08:42,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:08:42,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 115 [2021-03-26 08:08:42,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:42,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 115 [2021-03-26 08:08:42,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:42,260 INFO L129 PetriNetUnfolder]: 40/108 cut-off events. [2021-03-26 08:08:42,260 INFO L130 PetriNetUnfolder]: For 285/291 co-relation queries the response was YES. [2021-03-26 08:08:42,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 108 events. 40/108 cut-off events. For 285/291 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 424 event pairs, 3 based on Foata normal form. 8/98 useless extension candidates. Maximal degree in co-relation 376. Up to 59 conditions per place. [2021-03-26 08:08:42,261 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 12 selfloop transitions, 9 changer transitions 0/32 dead transitions. [2021-03-26 08:08:42,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 236 flow [2021-03-26 08:08:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:08:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:08:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 402 transitions. [2021-03-26 08:08:42,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6991304347826087 [2021-03-26 08:08:42,263 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 402 transitions. [2021-03-26 08:08:42,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 402 transitions. [2021-03-26 08:08:42,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:42,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 402 transitions. [2021-03-26 08:08:42,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,266 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,266 INFO L185 Difference]: Start difference. First operand has 35 places, 29 transitions, 168 flow. Second operand 5 states and 402 transitions. [2021-03-26 08:08:42,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 236 flow [2021-03-26 08:08:42,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 209 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-26 08:08:42,271 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 178 flow [2021-03-26 08:08:42,271 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-26 08:08:42,271 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 08:08:42,271 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:42,272 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 178 flow [2021-03-26 08:08:42,272 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 178 flow [2021-03-26 08:08:42,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 178 flow [2021-03-26 08:08:42,284 INFO L129 PetriNetUnfolder]: 30/104 cut-off events. [2021-03-26 08:08:42,284 INFO L130 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2021-03-26 08:08:42,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 104 events. 30/104 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 439 event pairs, 3 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 294. Up to 31 conditions per place. [2021-03-26 08:08:42,286 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 08:08:42,394 INFO L154 LiptonReduction]: Checked pairs total: 63 [2021-03-26 08:08:42,394 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 08:08:42,394 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-26 08:08:42,397 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 176 flow [2021-03-26 08:08:42,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:42,397 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:42,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 08:08:42,398 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:42,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:42,398 INFO L82 PathProgramCache]: Analyzing trace with hash 287081109, now seen corresponding path program 1 times [2021-03-26 08:08:42,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:42,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17286233] [2021-03-26 08:08:42,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:42,441 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:42,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,446 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 08:08:42,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:42,463 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:42,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:42,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17286233] [2021-03-26 08:08:42,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:08:42,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 08:08:42,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707956855] [2021-03-26 08:08:42,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:08:42,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:42,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:08:42,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:08:42,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2021-03-26 08:08:42,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:42,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2021-03-26 08:08:42,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:42,561 INFO L129 PetriNetUnfolder]: 36/98 cut-off events. [2021-03-26 08:08:42,561 INFO L130 PetriNetUnfolder]: For 267/273 co-relation queries the response was YES. [2021-03-26 08:08:42,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 98 events. 36/98 cut-off events. For 267/273 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 362 event pairs, 0 based on Foata normal form. 8/90 useless extension candidates. Maximal degree in co-relation 346. Up to 49 conditions per place. [2021-03-26 08:08:42,562 INFO L132 encePairwiseOnDemand]: 109/120 looper letters, 12 selfloop transitions, 16 changer transitions 0/38 dead transitions. [2021-03-26 08:08:42,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 299 flow [2021-03-26 08:08:42,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:08:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:08:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 562 transitions. [2021-03-26 08:08:42,567 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.669047619047619 [2021-03-26 08:08:42,567 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 562 transitions. [2021-03-26 08:08:42,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 562 transitions. [2021-03-26 08:08:42,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:42,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 562 transitions. [2021-03-26 08:08:42,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,570 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,570 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 176 flow. Second operand 7 states and 562 transitions. [2021-03-26 08:08:42,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 299 flow [2021-03-26 08:08:42,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 280 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-26 08:08:42,572 INFO L241 Difference]: Finished difference. Result has 42 places, 36 transitions, 267 flow [2021-03-26 08:08:42,572 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=267, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2021-03-26 08:08:42,572 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-26 08:08:42,572 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:42,572 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 36 transitions, 267 flow [2021-03-26 08:08:42,572 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 36 transitions, 267 flow [2021-03-26 08:08:42,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 36 transitions, 267 flow [2021-03-26 08:08:42,583 INFO L129 PetriNetUnfolder]: 34/96 cut-off events. [2021-03-26 08:08:42,583 INFO L130 PetriNetUnfolder]: For 347/347 co-relation queries the response was YES. [2021-03-26 08:08:42,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 96 events. 34/96 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 367 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 349. Up to 28 conditions per place. [2021-03-26 08:08:42,589 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-26 08:08:42,672 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-26 08:08:42,673 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 08:08:42,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-26 08:08:42,673 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 265 flow [2021-03-26 08:08:42,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,674 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:42,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:42,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 08:08:42,674 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:42,674 INFO L82 PathProgramCache]: Analyzing trace with hash -2115172427, now seen corresponding path program 1 times [2021-03-26 08:08:42,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:42,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380590884] [2021-03-26 08:08:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:42,700 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-26 08:08:42,701 INFO L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-03-26 08:08:42,709 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-26 08:08:42,710 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-03-26 08:08:42,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-26 08:08:42,721 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-26 08:08:42,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:42,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380590884] [2021-03-26 08:08:42,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815847549] [2021-03-26 08:08:42,739 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 [2021-03-26 08:08:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:42,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-26 08:08:42,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:42,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:42,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:42,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:42,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:42,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:42,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:42,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:42,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:42,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:42,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:42,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:42,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:42,960 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-26 08:08:42,962 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 08:08:42,965 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:42,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:42,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:42,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:42,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:42,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:42,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:08:42,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688984853] [2021-03-26 08:08:42,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:08:42,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:42,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:08:42,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:08:42,995 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2021-03-26 08:08:42,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 265 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:42,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:42,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2021-03-26 08:08:42,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:43,216 INFO L129 PetriNetUnfolder]: 53/159 cut-off events. [2021-03-26 08:08:43,217 INFO L130 PetriNetUnfolder]: For 911/914 co-relation queries the response was YES. [2021-03-26 08:08:43,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 159 events. 53/159 cut-off events. For 911/914 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 709 event pairs, 0 based on Foata normal form. 11/139 useless extension candidates. Maximal degree in co-relation 655. Up to 46 conditions per place. [2021-03-26 08:08:43,219 INFO L132 encePairwiseOnDemand]: 108/124 looper letters, 6 selfloop transitions, 42 changer transitions 0/57 dead transitions. [2021-03-26 08:08:43,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 57 transitions, 587 flow [2021-03-26 08:08:43,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 08:08:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 08:08:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1208 transitions. [2021-03-26 08:08:43,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6494623655913978 [2021-03-26 08:08:43,222 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1208 transitions. [2021-03-26 08:08:43,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1208 transitions. [2021-03-26 08:08:43,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:43,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1208 transitions. [2021-03-26 08:08:43,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 80.53333333333333) internal successors, (1208), 15 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:43,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:43,228 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:43,228 INFO L185 Difference]: Start difference. First operand has 41 places, 35 transitions, 265 flow. Second operand 15 states and 1208 transitions. [2021-03-26 08:08:43,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 57 transitions, 587 flow [2021-03-26 08:08:43,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 552 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-03-26 08:08:43,232 INFO L241 Difference]: Finished difference. Result has 58 places, 57 transitions, 592 flow [2021-03-26 08:08:43,232 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=592, PETRI_PLACES=58, PETRI_TRANSITIONS=57} [2021-03-26 08:08:43,232 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2021-03-26 08:08:43,233 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:43,233 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 57 transitions, 592 flow [2021-03-26 08:08:43,233 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 57 transitions, 592 flow [2021-03-26 08:08:43,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 57 transitions, 592 flow [2021-03-26 08:08:43,245 INFO L129 PetriNetUnfolder]: 53/159 cut-off events. [2021-03-26 08:08:43,245 INFO L130 PetriNetUnfolder]: For 1017/1017 co-relation queries the response was YES. [2021-03-26 08:08:43,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 159 events. 53/159 cut-off events. For 1017/1017 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 709 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 677. Up to 43 conditions per place. [2021-03-26 08:08:43,247 INFO L142 LiptonReduction]: Number of co-enabled transitions 328 [2021-03-26 08:08:43,548 INFO L154 LiptonReduction]: Checked pairs total: 290 [2021-03-26 08:08:43,548 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 08:08:43,549 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 317 [2021-03-26 08:08:43,553 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 57 transitions, 600 flow [2021-03-26 08:08:43,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:43,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:43,553 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:43,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:43,771 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:43,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1326203396, now seen corresponding path program 1 times [2021-03-26 08:08:43,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:43,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315044551] [2021-03-26 08:08:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:43,816 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:43,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,821 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-26 08:08:43,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:43,828 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-26 08:08:43,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:43,836 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:43,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,844 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:43,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:43,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315044551] [2021-03-26 08:08:43,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876217245] [2021-03-26 08:08:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 08:08:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:43,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:43,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:43,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:43,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:43,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:43,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:43,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:43,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:43,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:43,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:43,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:43,948 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-26 08:08:43,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:43,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:43,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:43,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:43,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:43,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:43,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:43,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:43,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:43,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:43,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:43,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:43,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:43,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:43,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:43,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:43,994 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:43,994 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:43,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:44,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:44,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:44,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958626913] [2021-03-26 08:08:44,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:44,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:44,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:44,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:44,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 136 [2021-03-26 08:08:44,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 57 transitions, 600 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:44,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 136 [2021-03-26 08:08:44,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:44,137 INFO L129 PetriNetUnfolder]: 57/171 cut-off events. [2021-03-26 08:08:44,137 INFO L130 PetriNetUnfolder]: For 1389/1402 co-relation queries the response was YES. [2021-03-26 08:08:44,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 171 events. 57/171 cut-off events. For 1389/1402 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 806 event pairs, 0 based on Foata normal form. 10/146 useless extension candidates. Maximal degree in co-relation 841. Up to 78 conditions per place. [2021-03-26 08:08:44,138 INFO L132 encePairwiseOnDemand]: 118/136 looper letters, 34 selfloop transitions, 25 changer transitions 0/68 dead transitions. [2021-03-26 08:08:44,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 68 transitions, 879 flow [2021-03-26 08:08:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 08:08:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 08:08:44,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 651 transitions. [2021-03-26 08:08:44,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5983455882352942 [2021-03-26 08:08:44,140 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 651 transitions. [2021-03-26 08:08:44,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 651 transitions. [2021-03-26 08:08:44,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:44,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 651 transitions. [2021-03-26 08:08:44,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 81.375) internal successors, (651), 8 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,143 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,143 INFO L185 Difference]: Start difference. First operand has 58 places, 57 transitions, 600 flow. Second operand 8 states and 651 transitions. [2021-03-26 08:08:44,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 68 transitions, 879 flow [2021-03-26 08:08:44,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 615 flow, removed 113 selfloop flow, removed 9 redundant places. [2021-03-26 08:08:44,148 INFO L241 Difference]: Finished difference. Result has 58 places, 61 transitions, 531 flow [2021-03-26 08:08:44,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=531, PETRI_PLACES=58, PETRI_TRANSITIONS=61} [2021-03-26 08:08:44,149 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2021-03-26 08:08:44,149 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:44,149 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 61 transitions, 531 flow [2021-03-26 08:08:44,149 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 61 transitions, 531 flow [2021-03-26 08:08:44,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 61 transitions, 531 flow [2021-03-26 08:08:44,158 INFO L129 PetriNetUnfolder]: 57/173 cut-off events. [2021-03-26 08:08:44,158 INFO L130 PetriNetUnfolder]: For 443/443 co-relation queries the response was YES. [2021-03-26 08:08:44,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 173 events. 57/173 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 827 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 544. Up to 49 conditions per place. [2021-03-26 08:08:44,160 INFO L142 LiptonReduction]: Number of co-enabled transitions 348 [2021-03-26 08:08:44,330 INFO L154 LiptonReduction]: Checked pairs total: 203 [2021-03-26 08:08:44,331 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 08:08:44,331 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-26 08:08:44,331 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 61 transitions, 536 flow [2021-03-26 08:08:44,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:44,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:44,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:44,549 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:44,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1026398200, now seen corresponding path program 1 times [2021-03-26 08:08:44,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:44,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018319576] [2021-03-26 08:08:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:44,599 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:44,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,605 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-26 08:08:44,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:44,612 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:44,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,621 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:44,621 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-26 08:08:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:44,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018319576] [2021-03-26 08:08:44,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315612183] [2021-03-26 08:08:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 08:08:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:44,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-26 08:08:44,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:44,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:44,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:44,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:44,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:44,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:44,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:44,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:44,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:44,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:44,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:44,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:44,719 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-26 08:08:44,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:44,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:44,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:44,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:44,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:44,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:44,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:44,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:44,741 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:44,742 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:44,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:44,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:44,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:08:44,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144644702] [2021-03-26 08:08:44,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:08:44,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:44,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:08:44,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:08:44,753 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 143 [2021-03-26 08:08:44,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 61 transitions, 536 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:44,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 143 [2021-03-26 08:08:44,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:44,881 INFO L129 PetriNetUnfolder]: 60/179 cut-off events. [2021-03-26 08:08:44,881 INFO L130 PetriNetUnfolder]: For 667/689 co-relation queries the response was YES. [2021-03-26 08:08:44,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 179 events. 60/179 cut-off events. For 667/689 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 874 event pairs, 0 based on Foata normal form. 12/154 useless extension candidates. Maximal degree in co-relation 679. Up to 80 conditions per place. [2021-03-26 08:08:44,883 INFO L132 encePairwiseOnDemand]: 120/143 looper letters, 35 selfloop transitions, 31 changer transitions 0/75 dead transitions. [2021-03-26 08:08:44,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 75 transitions, 765 flow [2021-03-26 08:08:44,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:08:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:08:44,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 583 transitions. [2021-03-26 08:08:44,884 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5824175824175825 [2021-03-26 08:08:44,884 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 583 transitions. [2021-03-26 08:08:44,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 583 transitions. [2021-03-26 08:08:44,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:44,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 583 transitions. [2021-03-26 08:08:44,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.28571428571429) internal successors, (583), 7 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,888 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:44,888 INFO L185 Difference]: Start difference. First operand has 58 places, 61 transitions, 536 flow. Second operand 7 states and 583 transitions. [2021-03-26 08:08:44,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 75 transitions, 765 flow [2021-03-26 08:08:44,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 715 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-26 08:08:44,893 INFO L241 Difference]: Finished difference. Result has 61 places, 68 transitions, 648 flow [2021-03-26 08:08:44,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=648, PETRI_PLACES=61, PETRI_TRANSITIONS=68} [2021-03-26 08:08:44,893 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 30 predicate places. [2021-03-26 08:08:44,893 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:44,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 68 transitions, 648 flow [2021-03-26 08:08:44,894 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 68 transitions, 648 flow [2021-03-26 08:08:44,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 68 transitions, 648 flow [2021-03-26 08:08:44,902 INFO L129 PetriNetUnfolder]: 60/181 cut-off events. [2021-03-26 08:08:44,903 INFO L130 PetriNetUnfolder]: For 594/595 co-relation queries the response was YES. [2021-03-26 08:08:44,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 181 events. 60/181 cut-off events. For 594/595 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 896 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 625. Up to 54 conditions per place. [2021-03-26 08:08:44,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 382 [2021-03-26 08:08:44,999 INFO L154 LiptonReduction]: Checked pairs total: 130 [2021-03-26 08:08:44,999 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 08:08:45,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-03-26 08:08:45,001 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 68 transitions, 648 flow [2021-03-26 08:08:45,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:45,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:45,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:45,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:45,216 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:45,216 INFO L82 PathProgramCache]: Analyzing trace with hash 372590480, now seen corresponding path program 1 times [2021-03-26 08:08:45,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:45,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944510585] [2021-03-26 08:08:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:45,240 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-26 08:08:45,241 INFO L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-03-26 08:08:45,249 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-26 08:08:45,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:45,257 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-26 08:08:45,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:45,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:45,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944510585] [2021-03-26 08:08:45,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513920040] [2021-03-26 08:08:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:45,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-26 08:08:45,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:45,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:45,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:45,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:45,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:45,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:45,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:45,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:45,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:45,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:45,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:45,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:45,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:45,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:45,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:45,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:45,378 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-26 08:08:45,378 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 08:08:45,380 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:45,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:45,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:45,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:45,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:45,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:08:45,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195149171] [2021-03-26 08:08:45,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:08:45,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:45,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:08:45,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:08:45,397 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 147 [2021-03-26 08:08:45,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 68 transitions, 648 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:45,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:45,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 147 [2021-03-26 08:08:45,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:45,672 INFO L129 PetriNetUnfolder]: 80/247 cut-off events. [2021-03-26 08:08:45,672 INFO L130 PetriNetUnfolder]: For 1314/1334 co-relation queries the response was YES. [2021-03-26 08:08:45,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 247 events. 80/247 cut-off events. For 1314/1334 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1353 event pairs, 0 based on Foata normal form. 18/212 useless extension candidates. Maximal degree in co-relation 960. Up to 86 conditions per place. [2021-03-26 08:08:45,673 INFO L132 encePairwiseOnDemand]: 112/147 looper letters, 10 selfloop transitions, 83 changer transitions 0/102 dead transitions. [2021-03-26 08:08:45,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 102 transitions, 1131 flow [2021-03-26 08:08:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 08:08:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 08:08:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1233 transitions. [2021-03-26 08:08:45,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5591836734693878 [2021-03-26 08:08:45,676 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1233 transitions. [2021-03-26 08:08:45,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1233 transitions. [2021-03-26 08:08:45,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:45,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1233 transitions. [2021-03-26 08:08:45,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 82.2) internal successors, (1233), 15 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:45,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 147.0) internal successors, (2352), 16 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:45,681 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 147.0) internal successors, (2352), 16 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:45,681 INFO L185 Difference]: Start difference. First operand has 61 places, 68 transitions, 648 flow. Second operand 15 states and 1233 transitions. [2021-03-26 08:08:45,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 102 transitions, 1131 flow [2021-03-26 08:08:45,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 102 transitions, 1096 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 08:08:45,688 INFO L241 Difference]: Finished difference. Result has 77 places, 102 transitions, 1175 flow [2021-03-26 08:08:45,688 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1175, PETRI_PLACES=77, PETRI_TRANSITIONS=102} [2021-03-26 08:08:45,688 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 46 predicate places. [2021-03-26 08:08:45,688 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:45,688 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 102 transitions, 1175 flow [2021-03-26 08:08:45,688 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 102 transitions, 1175 flow [2021-03-26 08:08:45,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 102 transitions, 1175 flow [2021-03-26 08:08:45,701 INFO L129 PetriNetUnfolder]: 80/247 cut-off events. [2021-03-26 08:08:45,701 INFO L130 PetriNetUnfolder]: For 1207/1215 co-relation queries the response was YES. [2021-03-26 08:08:45,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 247 events. 80/247 cut-off events. For 1207/1215 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1372 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 998. Up to 86 conditions per place. [2021-03-26 08:08:45,703 INFO L142 LiptonReduction]: Number of co-enabled transitions 572 [2021-03-26 08:08:45,939 INFO L154 LiptonReduction]: Checked pairs total: 638 [2021-03-26 08:08:45,939 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-26 08:08:45,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-26 08:08:45,940 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 101 transitions, 1165 flow [2021-03-26 08:08:45,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:45,940 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:45,940 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:46,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:46,156 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:46,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:46,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1202846484, now seen corresponding path program 1 times [2021-03-26 08:08:46,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:46,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832145437] [2021-03-26 08:08:46,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:46,191 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:46,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,196 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:46,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:46,203 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:08:46,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:46,211 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:46,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,220 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:46,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:46,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832145437] [2021-03-26 08:08:46,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437449069] [2021-03-26 08:08:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:46,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:46,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:46,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:46,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:46,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:46,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:46,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:46,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:46,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:46,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:46,313 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-26 08:08:46,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 08:08:46,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 08:08:46,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:46,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:46,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:46,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:46,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:46,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:46,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:46,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:46,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:46,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:46,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:46,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:46,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:46,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:46,358 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:46,359 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:46,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:46,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:46,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330907861] [2021-03-26 08:08:46,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:46,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:46,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:46,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:46,366 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 159 [2021-03-26 08:08:46,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 101 transitions, 1165 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:46,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:46,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 159 [2021-03-26 08:08:46,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:46,628 INFO L129 PetriNetUnfolder]: 86/274 cut-off events. [2021-03-26 08:08:46,628 INFO L130 PetriNetUnfolder]: For 1628/1678 co-relation queries the response was YES. [2021-03-26 08:08:46,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1291 conditions, 274 events. 86/274 cut-off events. For 1628/1678 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1657 event pairs, 0 based on Foata normal form. 17/231 useless extension candidates. Maximal degree in co-relation 1257. Up to 114 conditions per place. [2021-03-26 08:08:46,630 INFO L132 encePairwiseOnDemand]: 125/159 looper letters, 59 selfloop transitions, 49 changer transitions 0/117 dead transitions. [2021-03-26 08:08:46,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 117 transitions, 1592 flow [2021-03-26 08:08:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 08:08:46,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 08:08:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1146 transitions. [2021-03-26 08:08:46,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5148247978436657 [2021-03-26 08:08:46,632 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1146 transitions. [2021-03-26 08:08:46,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1146 transitions. [2021-03-26 08:08:46,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:46,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1146 transitions. [2021-03-26 08:08:46,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.85714285714286) internal successors, (1146), 14 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:46,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:46,637 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:46,637 INFO L185 Difference]: Start difference. First operand has 77 places, 101 transitions, 1165 flow. Second operand 14 states and 1146 transitions. [2021-03-26 08:08:46,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 117 transitions, 1592 flow [2021-03-26 08:08:46,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 117 transitions, 1452 flow, removed 49 selfloop flow, removed 6 redundant places. [2021-03-26 08:08:46,646 INFO L241 Difference]: Finished difference. Result has 88 places, 113 transitions, 1356 flow [2021-03-26 08:08:46,646 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=1043, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1356, PETRI_PLACES=88, PETRI_TRANSITIONS=113} [2021-03-26 08:08:46,646 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 57 predicate places. [2021-03-26 08:08:46,646 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:46,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 113 transitions, 1356 flow [2021-03-26 08:08:46,646 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 113 transitions, 1356 flow [2021-03-26 08:08:46,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 113 transitions, 1356 flow [2021-03-26 08:08:46,661 INFO L129 PetriNetUnfolder]: 86/274 cut-off events. [2021-03-26 08:08:46,662 INFO L130 PetriNetUnfolder]: For 1224/1231 co-relation queries the response was YES. [2021-03-26 08:08:46,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 274 events. 86/274 cut-off events. For 1224/1231 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1657 event pairs, 0 based on Foata normal form. 1/215 useless extension candidates. Maximal degree in co-relation 1113. Up to 92 conditions per place. [2021-03-26 08:08:46,664 INFO L142 LiptonReduction]: Number of co-enabled transitions 618 [2021-03-26 08:08:46,950 INFO L154 LiptonReduction]: Checked pairs total: 443 [2021-03-26 08:08:46,951 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 08:08:46,951 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-26 08:08:46,951 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 113 transitions, 1370 flow [2021-03-26 08:08:46,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:46,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:46,952 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:47,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-03-26 08:08:47,169 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:47,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:47,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1845797068, now seen corresponding path program 1 times [2021-03-26 08:08:47,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:47,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066945332] [2021-03-26 08:08:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:47,204 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:47,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,210 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:47,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,218 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:08:47,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:47,228 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:47,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:47,241 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:47,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066945332] [2021-03-26 08:08:47,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458118444] [2021-03-26 08:08:47,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:47,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:47,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:47,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:47,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:47,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:47,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:47,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:47,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:47,344 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:08:47,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:47,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:47,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:47,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:47,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:47,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:47,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:47,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:47,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:47,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:47,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:47,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:47,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,375 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:08:47,376 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:08:47,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:47,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:47,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:47,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:47,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:47,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:08:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:47,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:47,401 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:47,401 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:47,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:47,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:47,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964782850] [2021-03-26 08:08:47,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:47,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:47,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:47,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:47,411 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2021-03-26 08:08:47,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 113 transitions, 1370 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:47,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:47,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2021-03-26 08:08:47,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:47,737 INFO L129 PetriNetUnfolder]: 93/300 cut-off events. [2021-03-26 08:08:47,738 INFO L130 PetriNetUnfolder]: For 1714/1788 co-relation queries the response was YES. [2021-03-26 08:08:47,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 300 events. 93/300 cut-off events. For 1714/1788 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1902 event pairs, 0 based on Foata normal form. 27/260 useless extension candidates. Maximal degree in co-relation 1395. Up to 109 conditions per place. [2021-03-26 08:08:47,740 INFO L132 encePairwiseOnDemand]: 126/169 looper letters, 52 selfloop transitions, 67 changer transitions 0/128 dead transitions. [2021-03-26 08:08:47,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 128 transitions, 1793 flow [2021-03-26 08:08:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 08:08:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 08:08:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1236 transitions. [2021-03-26 08:08:47,743 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48757396449704143 [2021-03-26 08:08:47,743 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1236 transitions. [2021-03-26 08:08:47,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1236 transitions. [2021-03-26 08:08:47,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:47,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1236 transitions. [2021-03-26 08:08:47,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 82.4) internal successors, (1236), 15 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:47,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 169.0) internal successors, (2704), 16 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:47,749 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 169.0) internal successors, (2704), 16 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:47,749 INFO L185 Difference]: Start difference. First operand has 88 places, 113 transitions, 1370 flow. Second operand 15 states and 1236 transitions. [2021-03-26 08:08:47,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 128 transitions, 1793 flow [2021-03-26 08:08:47,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 128 transitions, 1734 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-26 08:08:47,761 INFO L241 Difference]: Finished difference. Result has 99 places, 123 transitions, 1650 flow [2021-03-26 08:08:47,761 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1311, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1650, PETRI_PLACES=99, PETRI_TRANSITIONS=123} [2021-03-26 08:08:47,761 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 68 predicate places. [2021-03-26 08:08:47,761 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:47,762 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 123 transitions, 1650 flow [2021-03-26 08:08:47,762 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 123 transitions, 1650 flow [2021-03-26 08:08:47,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 123 transitions, 1650 flow [2021-03-26 08:08:47,783 INFO L129 PetriNetUnfolder]: 93/300 cut-off events. [2021-03-26 08:08:47,783 INFO L130 PetriNetUnfolder]: For 1607/1631 co-relation queries the response was YES. [2021-03-26 08:08:47,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 300 events. 93/300 cut-off events. For 1607/1631 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1937 event pairs, 0 based on Foata normal form. 3/235 useless extension candidates. Maximal degree in co-relation 1346. Up to 106 conditions per place. [2021-03-26 08:08:47,786 INFO L142 LiptonReduction]: Number of co-enabled transitions 666 [2021-03-26 08:08:47,876 INFO L154 LiptonReduction]: Checked pairs total: 115 [2021-03-26 08:08:47,876 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 08:08:47,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-26 08:08:47,878 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 123 transitions, 1655 flow [2021-03-26 08:08:47,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:47,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:47,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:48,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:48,094 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:48,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1028546097, now seen corresponding path program 1 times [2021-03-26 08:08:48,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:48,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205771641] [2021-03-26 08:08:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:48,126 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:48,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,131 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-26 08:08:48,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,136 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-26 08:08:48,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,143 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:48,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:48,151 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:48,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:48,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205771641] [2021-03-26 08:08:48,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178704031] [2021-03-26 08:08:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:48,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:48,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:48,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:48,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:48,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:48,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:48,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:48,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:48,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:48,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:48,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:48,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:48,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:48,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:48,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:48,293 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-26 08:08:48,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:48,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:48,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:48,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:48,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:48,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:48,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:48,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:48,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,315 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:48,315 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:48,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:48,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:48,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:08:48,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704989103] [2021-03-26 08:08:48,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:08:48,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:48,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:08:48,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:08:48,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 172 [2021-03-26 08:08:48,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 123 transitions, 1655 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:48,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:48,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 172 [2021-03-26 08:08:48,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:48,574 INFO L129 PetriNetUnfolder]: 98/320 cut-off events. [2021-03-26 08:08:48,574 INFO L130 PetriNetUnfolder]: For 2127/2196 co-relation queries the response was YES. [2021-03-26 08:08:48,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 320 events. 98/320 cut-off events. For 2127/2196 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2086 event pairs, 0 based on Foata normal form. 18/266 useless extension candidates. Maximal degree in co-relation 1612. Up to 132 conditions per place. [2021-03-26 08:08:48,577 INFO L132 encePairwiseOnDemand]: 136/172 looper letters, 76 selfloop transitions, 52 changer transitions 0/137 dead transitions. [2021-03-26 08:08:48,577 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 137 transitions, 2071 flow [2021-03-26 08:08:48,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 08:08:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 08:08:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 769 transitions. [2021-03-26 08:08:48,580 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4967700258397933 [2021-03-26 08:08:48,580 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 769 transitions. [2021-03-26 08:08:48,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 769 transitions. [2021-03-26 08:08:48,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:48,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 769 transitions. [2021-03-26 08:08:48,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.44444444444444) internal successors, (769), 9 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:48,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 172.0) internal successors, (1720), 10 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:48,585 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 172.0) internal successors, (1720), 10 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:48,585 INFO L185 Difference]: Start difference. First operand has 99 places, 123 transitions, 1655 flow. Second operand 9 states and 769 transitions. [2021-03-26 08:08:48,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 137 transitions, 2071 flow [2021-03-26 08:08:48,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 137 transitions, 1953 flow, removed 21 selfloop flow, removed 9 redundant places. [2021-03-26 08:08:48,597 INFO L241 Difference]: Finished difference. Result has 101 places, 132 transitions, 1821 flow [2021-03-26 08:08:48,598 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=1541, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1821, PETRI_PLACES=101, PETRI_TRANSITIONS=132} [2021-03-26 08:08:48,598 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 70 predicate places. [2021-03-26 08:08:48,598 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:48,598 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 132 transitions, 1821 flow [2021-03-26 08:08:48,598 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 132 transitions, 1821 flow [2021-03-26 08:08:48,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 132 transitions, 1821 flow [2021-03-26 08:08:48,615 INFO L129 PetriNetUnfolder]: 98/318 cut-off events. [2021-03-26 08:08:48,615 INFO L130 PetriNetUnfolder]: For 1844/1858 co-relation queries the response was YES. [2021-03-26 08:08:48,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 318 events. 98/318 cut-off events. For 1844/1858 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2064 event pairs, 0 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 1477. Up to 116 conditions per place. [2021-03-26 08:08:48,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 708 [2021-03-26 08:08:48,667 INFO L154 LiptonReduction]: Checked pairs total: 141 [2021-03-26 08:08:48,667 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 08:08:48,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-26 08:08:48,669 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 132 transitions, 1821 flow [2021-03-26 08:08:48,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:48,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:48,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:48,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:48,885 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:48,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:48,885 INFO L82 PathProgramCache]: Analyzing trace with hash 399269998, now seen corresponding path program 1 times [2021-03-26 08:08:48,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:48,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40666151] [2021-03-26 08:08:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:48,916 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:48,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,921 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-26 08:08:48,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:48,927 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:48,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:48,934 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:48,943 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:48,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:48,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40666151] [2021-03-26 08:08:48,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340364733] [2021-03-26 08:08:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:48,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:48,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:48,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:48,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:48,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:49,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:08:49,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:08:49,013 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-26 08:08:49,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:49,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:49,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:49,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:49,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:49,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:49,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:49,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:49,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:49,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:49,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:49,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:49,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:49,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:49,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:49,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:49,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,064 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:49,064 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:49,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:49,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:49,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:08:49,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025098533] [2021-03-26 08:08:49,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:08:49,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:08:49,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:08:49,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 174 [2021-03-26 08:08:49,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 132 transitions, 1821 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:49,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 174 [2021-03-26 08:08:49,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:49,297 INFO L129 PetriNetUnfolder]: 101/330 cut-off events. [2021-03-26 08:08:49,297 INFO L130 PetriNetUnfolder]: For 2381/2452 co-relation queries the response was YES. [2021-03-26 08:08:49,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 330 events. 101/330 cut-off events. For 2381/2452 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2156 event pairs, 0 based on Foata normal form. 18/274 useless extension candidates. Maximal degree in co-relation 1715. Up to 163 conditions per place. [2021-03-26 08:08:49,299 INFO L132 encePairwiseOnDemand]: 152/174 looper letters, 102 selfloop transitions, 28 changer transitions 0/139 dead transitions. [2021-03-26 08:08:49,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 139 transitions, 2174 flow [2021-03-26 08:08:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:08:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:08:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 613 transitions. [2021-03-26 08:08:49,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5032840722495895 [2021-03-26 08:08:49,301 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 613 transitions. [2021-03-26 08:08:49,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 613 transitions. [2021-03-26 08:08:49,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:49,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 613 transitions. [2021-03-26 08:08:49,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,303 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,303 INFO L185 Difference]: Start difference. First operand has 101 places, 132 transitions, 1821 flow. Second operand 7 states and 613 transitions. [2021-03-26 08:08:49,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 139 transitions, 2174 flow [2021-03-26 08:08:49,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 139 transitions, 2102 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-26 08:08:49,316 INFO L241 Difference]: Finished difference. Result has 104 places, 136 transitions, 1900 flow [2021-03-26 08:08:49,316 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1751, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1900, PETRI_PLACES=104, PETRI_TRANSITIONS=136} [2021-03-26 08:08:49,316 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 73 predicate places. [2021-03-26 08:08:49,316 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:49,316 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 136 transitions, 1900 flow [2021-03-26 08:08:49,317 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 136 transitions, 1900 flow [2021-03-26 08:08:49,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 136 transitions, 1900 flow [2021-03-26 08:08:49,335 INFO L129 PetriNetUnfolder]: 101/332 cut-off events. [2021-03-26 08:08:49,335 INFO L130 PetriNetUnfolder]: For 2135/2148 co-relation queries the response was YES. [2021-03-26 08:08:49,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 332 events. 101/332 cut-off events. For 2135/2148 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2224 event pairs, 0 based on Foata normal form. 3/260 useless extension candidates. Maximal degree in co-relation 1564. Up to 119 conditions per place. [2021-03-26 08:08:49,338 INFO L142 LiptonReduction]: Number of co-enabled transitions 726 [2021-03-26 08:08:49,411 INFO L154 LiptonReduction]: Checked pairs total: 63 [2021-03-26 08:08:49,412 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 08:08:49,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-26 08:08:49,412 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 136 transitions, 1906 flow [2021-03-26 08:08:49,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,413 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:49,413 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:49,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-03-26 08:08:49,628 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:49,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:49,629 INFO L82 PathProgramCache]: Analyzing trace with hash -325358055, now seen corresponding path program 1 times [2021-03-26 08:08:49,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:49,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175521438] [2021-03-26 08:08:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:49,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:49,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175521438] [2021-03-26 08:08:49,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371322768] [2021-03-26 08:08:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:49,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 08:08:49,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:49,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:49,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:49,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:49,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:49,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:49,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:49,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:49,731 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-03-26 08:08:49,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:49,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:49,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:49,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 08:08:49,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-03-26 08:08:49,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93262686] [2021-03-26 08:08:49,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:08:49,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:49,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:08:49,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 08:08:49,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 176 [2021-03-26 08:08:49,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 136 transitions, 1906 flow. Second operand has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:49,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 176 [2021-03-26 08:08:49,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:49,824 INFO L129 PetriNetUnfolder]: 105/347 cut-off events. [2021-03-26 08:08:49,824 INFO L130 PetriNetUnfolder]: For 2905/3024 co-relation queries the response was YES. [2021-03-26 08:08:49,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1862 conditions, 347 events. 105/347 cut-off events. For 2905/3024 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2340 event pairs, 0 based on Foata normal form. 64/333 useless extension candidates. Maximal degree in co-relation 1817. Up to 126 conditions per place. [2021-03-26 08:08:49,827 INFO L132 encePairwiseOnDemand]: 171/176 looper letters, 52 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2021-03-26 08:08:49,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 143 transitions, 2066 flow [2021-03-26 08:08:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:08:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:08:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 684 transitions. [2021-03-26 08:08:49,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7772727272727272 [2021-03-26 08:08:49,829 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 684 transitions. [2021-03-26 08:08:49,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 684 transitions. [2021-03-26 08:08:49,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:49,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 684 transitions. [2021-03-26 08:08:49,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,831 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:49,831 INFO L185 Difference]: Start difference. First operand has 104 places, 136 transitions, 1906 flow. Second operand 5 states and 684 transitions. [2021-03-26 08:08:49,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 143 transitions, 2066 flow [2021-03-26 08:08:49,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 143 transitions, 2017 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-03-26 08:08:49,844 INFO L241 Difference]: Finished difference. Result has 106 places, 138 transitions, 1878 flow [2021-03-26 08:08:49,844 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=1857, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1878, PETRI_PLACES=106, PETRI_TRANSITIONS=138} [2021-03-26 08:08:49,845 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 75 predicate places. [2021-03-26 08:08:49,845 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:49,845 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 138 transitions, 1878 flow [2021-03-26 08:08:49,845 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 138 transitions, 1878 flow [2021-03-26 08:08:49,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 138 transitions, 1878 flow [2021-03-26 08:08:49,865 INFO L129 PetriNetUnfolder]: 105/345 cut-off events. [2021-03-26 08:08:49,865 INFO L130 PetriNetUnfolder]: For 2337/2356 co-relation queries the response was YES. [2021-03-26 08:08:49,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 345 events. 105/345 cut-off events. For 2337/2356 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2317 event pairs, 0 based on Foata normal form. 3/315 useless extension candidates. Maximal degree in co-relation 1704. Up to 125 conditions per place. [2021-03-26 08:08:49,869 INFO L142 LiptonReduction]: Number of co-enabled transitions 752 [2021-03-26 08:08:50,060 INFO L154 LiptonReduction]: Checked pairs total: 150 [2021-03-26 08:08:50,060 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 08:08:50,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 215 [2021-03-26 08:08:50,061 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 138 transitions, 1883 flow [2021-03-26 08:08:50,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:50,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:50,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-03-26 08:08:50,280 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:50,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:50,280 INFO L82 PathProgramCache]: Analyzing trace with hash 981118143, now seen corresponding path program 1 times [2021-03-26 08:08:50,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:50,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204204841] [2021-03-26 08:08:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:50,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:50,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204204841] [2021-03-26 08:08:50,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42515705] [2021-03-26 08:08:50,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:50,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 08:08:50,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:50,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:50,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:50,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:50,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:50,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:50,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:50,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:50,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:50,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:50,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:50,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:50,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:50,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:08:50,403 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-26 08:08:50,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:50,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:08:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:50,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 08:08:50,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-03-26 08:08:50,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834496795] [2021-03-26 08:08:50,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:08:50,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:50,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:08:50,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 08:08:50,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 180 [2021-03-26 08:08:50,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 138 transitions, 1883 flow. Second operand has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:50,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 180 [2021-03-26 08:08:50,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:50,542 INFO L129 PetriNetUnfolder]: 106/347 cut-off events. [2021-03-26 08:08:50,542 INFO L130 PetriNetUnfolder]: For 4245/4391 co-relation queries the response was YES. [2021-03-26 08:08:50,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 347 events. 106/347 cut-off events. For 4245/4391 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2252 event pairs, 0 based on Foata normal form. 74/390 useless extension candidates. Maximal degree in co-relation 1898. Up to 127 conditions per place. [2021-03-26 08:08:50,545 INFO L132 encePairwiseOnDemand]: 174/180 looper letters, 70 selfloop transitions, 4 changer transitions 2/141 dead transitions. [2021-03-26 08:08:50,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 141 transitions, 2041 flow [2021-03-26 08:08:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:08:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:08:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 616 transitions. [2021-03-26 08:08:50,547 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6844444444444444 [2021-03-26 08:08:50,547 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 616 transitions. [2021-03-26 08:08:50,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 616 transitions. [2021-03-26 08:08:50,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:50,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 616 transitions. [2021-03-26 08:08:50,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.2) internal successors, (616), 5 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,549 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,549 INFO L185 Difference]: Start difference. First operand has 106 places, 138 transitions, 1883 flow. Second operand 5 states and 616 transitions. [2021-03-26 08:08:50,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 141 transitions, 2041 flow [2021-03-26 08:08:50,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 141 transitions, 2038 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 08:08:50,561 INFO L241 Difference]: Finished difference. Result has 110 places, 137 transitions, 1854 flow [2021-03-26 08:08:50,561 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1860, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1854, PETRI_PLACES=110, PETRI_TRANSITIONS=137} [2021-03-26 08:08:50,562 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 79 predicate places. [2021-03-26 08:08:50,562 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:50,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 137 transitions, 1854 flow [2021-03-26 08:08:50,562 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 137 transitions, 1854 flow [2021-03-26 08:08:50,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 137 transitions, 1854 flow [2021-03-26 08:08:50,584 INFO L129 PetriNetUnfolder]: 105/343 cut-off events. [2021-03-26 08:08:50,584 INFO L130 PetriNetUnfolder]: For 2702/2778 co-relation queries the response was YES. [2021-03-26 08:08:50,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 343 events. 105/343 cut-off events. For 2702/2778 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2272 event pairs, 0 based on Foata normal form. 3/340 useless extension candidates. Maximal degree in co-relation 1781. Up to 124 conditions per place. [2021-03-26 08:08:50,587 INFO L142 LiptonReduction]: Number of co-enabled transitions 750 [2021-03-26 08:08:50,643 INFO L154 LiptonReduction]: Checked pairs total: 34 [2021-03-26 08:08:50,643 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 08:08:50,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-26 08:08:50,644 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 137 transitions, 1854 flow [2021-03-26 08:08:50,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:50,644 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:50,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-26 08:08:50,860 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:50,860 INFO L82 PathProgramCache]: Analyzing trace with hash 377942928, now seen corresponding path program 1 times [2021-03-26 08:08:50,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:50,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233260329] [2021-03-26 08:08:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:50,871 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:50,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:50,888 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:08:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:50,898 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:50,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:50,916 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:50,917 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-26 08:08:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:50,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233260329] [2021-03-26 08:08:50,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:08:50,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 08:08:50,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698236911] [2021-03-26 08:08:50,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 08:08:50,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:50,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 08:08:50,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 08:08:50,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2021-03-26 08:08:50,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 137 transitions, 1854 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:50,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:50,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2021-03-26 08:08:50,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:51,136 INFO L129 PetriNetUnfolder]: 108/354 cut-off events. [2021-03-26 08:08:51,136 INFO L130 PetriNetUnfolder]: For 3078/3253 co-relation queries the response was YES. [2021-03-26 08:08:51,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 354 events. 108/354 cut-off events. For 3078/3253 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2336 event pairs, 0 based on Foata normal form. 30/382 useless extension candidates. Maximal degree in co-relation 2039. Up to 150 conditions per place. [2021-03-26 08:08:51,139 INFO L132 encePairwiseOnDemand]: 136/181 looper letters, 73 selfloop transitions, 64 changer transitions 0/149 dead transitions. [2021-03-26 08:08:51,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 149 transitions, 2281 flow [2021-03-26 08:08:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 08:08:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 08:08:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 698 transitions. [2021-03-26 08:08:51,141 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48204419889502764 [2021-03-26 08:08:51,141 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 698 transitions. [2021-03-26 08:08:51,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 698 transitions. [2021-03-26 08:08:51,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:51,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 698 transitions. [2021-03-26 08:08:51,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,145 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,145 INFO L185 Difference]: Start difference. First operand has 110 places, 137 transitions, 1854 flow. Second operand 8 states and 698 transitions. [2021-03-26 08:08:51,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 149 transitions, 2281 flow [2021-03-26 08:08:51,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 149 transitions, 2269 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-26 08:08:51,159 INFO L241 Difference]: Finished difference. Result has 117 places, 144 transitions, 2145 flow [2021-03-26 08:08:51,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1844, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2145, PETRI_PLACES=117, PETRI_TRANSITIONS=144} [2021-03-26 08:08:51,159 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 86 predicate places. [2021-03-26 08:08:51,159 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:51,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 144 transitions, 2145 flow [2021-03-26 08:08:51,160 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 144 transitions, 2145 flow [2021-03-26 08:08:51,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 144 transitions, 2145 flow [2021-03-26 08:08:51,182 INFO L129 PetriNetUnfolder]: 110/356 cut-off events. [2021-03-26 08:08:51,182 INFO L130 PetriNetUnfolder]: For 2836/2912 co-relation queries the response was YES. [2021-03-26 08:08:51,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1964 conditions, 356 events. 110/356 cut-off events. For 2836/2912 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2324 event pairs, 0 based on Foata normal form. 6/359 useless extension candidates. Maximal degree in co-relation 1918. Up to 130 conditions per place. [2021-03-26 08:08:51,185 INFO L142 LiptonReduction]: Number of co-enabled transitions 768 [2021-03-26 08:08:51,251 INFO L154 LiptonReduction]: Checked pairs total: 213 [2021-03-26 08:08:51,252 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 08:08:51,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-26 08:08:51,252 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 144 transitions, 2147 flow [2021-03-26 08:08:51,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:51,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:51,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 08:08:51,253 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:51,253 INFO L82 PathProgramCache]: Analyzing trace with hash -717231096, now seen corresponding path program 1 times [2021-03-26 08:08:51,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:51,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784067199] [2021-03-26 08:08:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:51,282 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:51,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,287 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:51,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,292 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:08:51,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:51,299 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:51,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:51,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:51,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:51,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784067199] [2021-03-26 08:08:51,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923257006] [2021-03-26 08:08:51,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:51,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:51,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:51,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:51,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:51,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:51,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:51,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:51,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:51,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:51,391 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:08:51,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:51,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:51,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:51,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:51,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:51,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:51,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:51,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:51,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:51,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:51,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,418 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:08:51,418 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:08:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:51,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:51,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:51,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:08:51,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:51,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:51,443 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:51,443 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:51,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:51,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:51,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:51,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637477593] [2021-03-26 08:08:51,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:51,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:51,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:51,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:51,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2021-03-26 08:08:51,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 144 transitions, 2147 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:51,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2021-03-26 08:08:51,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:51,832 INFO L129 PetriNetUnfolder]: 111/368 cut-off events. [2021-03-26 08:08:51,832 INFO L130 PetriNetUnfolder]: For 3269/3516 co-relation queries the response was YES. [2021-03-26 08:08:51,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2226 conditions, 368 events. 111/368 cut-off events. For 3269/3516 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2511 event pairs, 0 based on Foata normal form. 47/413 useless extension candidates. Maximal degree in co-relation 2178. Up to 136 conditions per place. [2021-03-26 08:08:51,835 INFO L132 encePairwiseOnDemand]: 133/184 looper letters, 51 selfloop transitions, 90 changer transitions 0/153 dead transitions. [2021-03-26 08:08:51,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 2551 flow [2021-03-26 08:08:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 08:08:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 08:08:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1246 transitions. [2021-03-26 08:08:51,837 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4514492753623188 [2021-03-26 08:08:51,837 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1246 transitions. [2021-03-26 08:08:51,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1246 transitions. [2021-03-26 08:08:51,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:51,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1246 transitions. [2021-03-26 08:08:51,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 83.06666666666666) internal successors, (1246), 15 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 184.0) internal successors, (2944), 16 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,850 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 184.0) internal successors, (2944), 16 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,851 INFO L185 Difference]: Start difference. First operand has 117 places, 144 transitions, 2147 flow. Second operand 15 states and 1246 transitions. [2021-03-26 08:08:51,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 2551 flow [2021-03-26 08:08:51,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 153 transitions, 2509 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-26 08:08:51,866 INFO L241 Difference]: Finished difference. Result has 130 places, 148 transitions, 2423 flow [2021-03-26 08:08:51,866 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=2105, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2423, PETRI_PLACES=130, PETRI_TRANSITIONS=148} [2021-03-26 08:08:51,866 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 99 predicate places. [2021-03-26 08:08:51,866 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:51,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 148 transitions, 2423 flow [2021-03-26 08:08:51,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 148 transitions, 2423 flow [2021-03-26 08:08:51,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 148 transitions, 2423 flow [2021-03-26 08:08:51,891 INFO L129 PetriNetUnfolder]: 111/368 cut-off events. [2021-03-26 08:08:51,892 INFO L130 PetriNetUnfolder]: For 3278/3365 co-relation queries the response was YES. [2021-03-26 08:08:51,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 368 events. 111/368 cut-off events. For 3278/3365 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2490 event pairs, 0 based on Foata normal form. 5/370 useless extension candidates. Maximal degree in co-relation 2114. Up to 136 conditions per place. [2021-03-26 08:08:51,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-26 08:08:51,927 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-26 08:08:51,928 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 08:08:51,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-26 08:08:51,928 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 148 transitions, 2423 flow [2021-03-26 08:08:51,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:51,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:51,928 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:52,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-26 08:08:52,144 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:52,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:52,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1068197918, now seen corresponding path program 1 times [2021-03-26 08:08:52,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:52,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311417531] [2021-03-26 08:08:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:52,164 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:52,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,168 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:52,174 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:08:52,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:52,180 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:52,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:52,187 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:52,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:52,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311417531] [2021-03-26 08:08:52,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512060959] [2021-03-26 08:08:52,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:52,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:52,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:52,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:52,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:52,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:52,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:52,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:52,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:52,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:52,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:52,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:52,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:52,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:52,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:52,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:52,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,274 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:08:52,275 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:08:52,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:08:52,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:08:52,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:08:52,288 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-26 08:08:52,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:08:52,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:08:52,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:52,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:52,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:52,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:52,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:08:52,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:52,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:52,317 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:52,317 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:52,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:52,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:52,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:52,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771045124] [2021-03-26 08:08:52,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:52,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:52,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:52,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:52,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 185 [2021-03-26 08:08:52,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 148 transitions, 2423 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:52,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:52,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 185 [2021-03-26 08:08:52,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:52,756 INFO L129 PetriNetUnfolder]: 119/393 cut-off events. [2021-03-26 08:08:52,756 INFO L130 PetriNetUnfolder]: For 4058/4339 co-relation queries the response was YES. [2021-03-26 08:08:52,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 393 events. 119/393 cut-off events. For 4058/4339 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2678 event pairs, 0 based on Foata normal form. 51/442 useless extension candidates. Maximal degree in co-relation 2458. Up to 151 conditions per place. [2021-03-26 08:08:52,759 INFO L132 encePairwiseOnDemand]: 121/185 looper letters, 30 selfloop transitions, 121 changer transitions 0/163 dead transitions. [2021-03-26 08:08:52,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 163 transitions, 2921 flow [2021-03-26 08:08:52,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 08:08:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 08:08:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1408 transitions. [2021-03-26 08:08:52,761 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44769475357710653 [2021-03-26 08:08:52,761 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1408 transitions. [2021-03-26 08:08:52,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1408 transitions. [2021-03-26 08:08:52,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:52,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1408 transitions. [2021-03-26 08:08:52,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 82.82352941176471) internal successors, (1408), 17 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:52,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 185.0) internal successors, (3330), 18 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:52,765 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 185.0) internal successors, (3330), 18 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:52,765 INFO L185 Difference]: Start difference. First operand has 130 places, 148 transitions, 2423 flow. Second operand 17 states and 1408 transitions. [2021-03-26 08:08:52,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 163 transitions, 2921 flow [2021-03-26 08:08:52,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 163 transitions, 2798 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-26 08:08:52,784 INFO L241 Difference]: Finished difference. Result has 139 places, 159 transitions, 2830 flow [2021-03-26 08:08:52,785 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2300, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2830, PETRI_PLACES=139, PETRI_TRANSITIONS=159} [2021-03-26 08:08:52,785 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 108 predicate places. [2021-03-26 08:08:52,785 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:52,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 159 transitions, 2830 flow [2021-03-26 08:08:52,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 159 transitions, 2830 flow [2021-03-26 08:08:52,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 159 transitions, 2830 flow [2021-03-26 08:08:52,830 INFO L129 PetriNetUnfolder]: 120/397 cut-off events. [2021-03-26 08:08:52,830 INFO L130 PetriNetUnfolder]: For 3936/4032 co-relation queries the response was YES. [2021-03-26 08:08:52,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2459 conditions, 397 events. 120/397 cut-off events. For 3936/4032 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2766 event pairs, 0 based on Foata normal form. 7/401 useless extension candidates. Maximal degree in co-relation 2406. Up to 151 conditions per place. [2021-03-26 08:08:52,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 834 [2021-03-26 08:08:52,912 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 08:08:52,912 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 08:08:52,912 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-26 08:08:52,913 INFO L480 AbstractCegarLoop]: Abstraction has has 139 places, 159 transitions, 2832 flow [2021-03-26 08:08:52,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:52,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:52,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:53,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:53,129 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:53,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:53,129 INFO L82 PathProgramCache]: Analyzing trace with hash -696374172, now seen corresponding path program 1 times [2021-03-26 08:08:53,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:53,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757175235] [2021-03-26 08:08:53,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:53,160 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:53,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,165 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:53,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,171 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:08:53,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:53,178 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:08:53,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,186 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:53,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:53,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757175235] [2021-03-26 08:08:53,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131560096] [2021-03-26 08:08:53,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:53,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:53,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:53,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:53,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:53,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:53,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,278 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:08:53,278 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:08:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:08:53,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:08:53,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:08:53,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:53,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:53,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:53,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 08:08:53,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:53,311 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 08:08:53,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,314 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 08:08:53,315 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,318 INFO L147 QuantifierPusher]: treesize reduction -4, result has 107.1 percent of original size 60 [2021-03-26 08:08:53,318 INFO L147 QuantifierPusher]: treesize reduction -4, result has 107.1 percent of original size 60 [2021-03-26 08:08:53,319 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 08:08:53,321 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:53,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:53,322 INFO L142 QuantifierPusher]: treesize reduction -4, result has 105.7 percent of original size [2021-03-26 08:08:53,365 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:08:53,387 INFO L147 QuantifierPusher]: treesize reduction 34, result has 98.7 percent of original size 2658 [2021-03-26 08:08:53,392 INFO L147 QuantifierPusher]: treesize reduction 34, result has 98.7 percent of original size 2658 [2021-03-26 08:08:53,397 INFO L142 QuantifierPusher]: treesize reduction 34, result has 98.7 percent of original size [2021-03-26 08:08:53,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2658 [2021-03-26 08:08:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:53,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:53,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:53,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535424633] [2021-03-26 08:08:53,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:53,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:53,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:53,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:53,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 187 [2021-03-26 08:08:53,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 159 transitions, 2832 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:53,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:53,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 187 [2021-03-26 08:08:53,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:54,096 INFO L129 PetriNetUnfolder]: 168/552 cut-off events. [2021-03-26 08:08:54,096 INFO L130 PetriNetUnfolder]: For 8493/8795 co-relation queries the response was YES. [2021-03-26 08:08:54,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3697 conditions, 552 events. 168/552 cut-off events. For 8493/8795 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4008 event pairs, 0 based on Foata normal form. 61/611 useless extension candidates. Maximal degree in co-relation 3642. Up to 229 conditions per place. [2021-03-26 08:08:54,101 INFO L132 encePairwiseOnDemand]: 120/187 looper letters, 10 selfloop transitions, 183 changer transitions 0/205 dead transitions. [2021-03-26 08:08:54,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 205 transitions, 4185 flow [2021-03-26 08:08:54,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-26 08:08:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-26 08:08:54,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1830 transitions. [2021-03-26 08:08:54,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44482255712202234 [2021-03-26 08:08:54,103 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1830 transitions. [2021-03-26 08:08:54,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1830 transitions. [2021-03-26 08:08:54,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:54,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1830 transitions. [2021-03-26 08:08:54,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 83.18181818181819) internal successors, (1830), 22 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:54,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 187.0) internal successors, (4301), 23 states have internal predecessors, (4301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:54,108 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 187.0) internal successors, (4301), 23 states have internal predecessors, (4301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:54,108 INFO L185 Difference]: Start difference. First operand has 139 places, 159 transitions, 2832 flow. Second operand 22 states and 1830 transitions. [2021-03-26 08:08:54,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 205 transitions, 4185 flow [2021-03-26 08:08:54,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 205 transitions, 4065 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-03-26 08:08:54,134 INFO L241 Difference]: Finished difference. Result has 155 places, 205 transitions, 4232 flow [2021-03-26 08:08:54,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=2712, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4232, PETRI_PLACES=155, PETRI_TRANSITIONS=205} [2021-03-26 08:08:54,134 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 124 predicate places. [2021-03-26 08:08:54,134 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:54,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 205 transitions, 4232 flow [2021-03-26 08:08:54,135 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 205 transitions, 4232 flow [2021-03-26 08:08:54,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 205 transitions, 4232 flow [2021-03-26 08:08:54,175 INFO L129 PetriNetUnfolder]: 168/552 cut-off events. [2021-03-26 08:08:54,175 INFO L130 PetriNetUnfolder]: For 7414/7527 co-relation queries the response was YES. [2021-03-26 08:08:54,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3801 conditions, 552 events. 168/552 cut-off events. For 7414/7527 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4036 event pairs, 0 based on Foata normal form. 8/558 useless extension candidates. Maximal degree in co-relation 3744. Up to 224 conditions per place. [2021-03-26 08:08:54,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 1070 [2021-03-26 08:08:54,738 INFO L154 LiptonReduction]: Checked pairs total: 2478 [2021-03-26 08:08:54,738 INFO L156 LiptonReduction]: Total number of compositions: 24 [2021-03-26 08:08:54,738 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 604 [2021-03-26 08:08:54,739 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 204 transitions, 4316 flow [2021-03-26 08:08:54,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:54,739 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:54,739 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:54,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-03-26 08:08:54,956 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1168668187, now seen corresponding path program 1 times [2021-03-26 08:08:54,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:54,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001808446] [2021-03-26 08:08:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:54,968 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:54,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:54,972 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:54,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:54,978 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:08:54,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:54,986 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:54,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:54,993 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:54,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:55,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001808446] [2021-03-26 08:08:55,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375259301] [2021-03-26 08:08:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:55,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:55,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:55,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:55,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:55,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:55,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:55,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:55,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:55,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:55,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:55,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:55,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:55,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:55,074 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:08:55,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:55,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:55,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:55,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:55,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:55,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:55,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:55,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:55,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:55,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:55,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:55,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:55,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,103 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:08:55,104 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:08:55,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:55,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:55,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:55,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:55,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:55,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:08:55,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:55,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:55,120 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:55,121 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:55,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:55,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:55,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:55,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074140895] [2021-03-26 08:08:55,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:55,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:55,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:55,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:55,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 210 [2021-03-26 08:08:55,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 204 transitions, 4316 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:55,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:55,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 210 [2021-03-26 08:08:55,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:55,564 INFO L129 PetriNetUnfolder]: 168/558 cut-off events. [2021-03-26 08:08:55,564 INFO L130 PetriNetUnfolder]: For 9117/9424 co-relation queries the response was YES. [2021-03-26 08:08:55,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 558 events. 168/558 cut-off events. For 9117/9424 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4182 event pairs, 0 based on Foata normal form. 44/599 useless extension candidates. Maximal degree in co-relation 4225. Up to 227 conditions per place. [2021-03-26 08:08:55,569 INFO L132 encePairwiseOnDemand]: 143/210 looper letters, 82 selfloop transitions, 120 changer transitions 0/214 dead transitions. [2021-03-26 08:08:55,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 214 transitions, 4884 flow [2021-03-26 08:08:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 08:08:55,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 08:08:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1270 transitions. [2021-03-26 08:08:55,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4031746031746032 [2021-03-26 08:08:55,571 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1270 transitions. [2021-03-26 08:08:55,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1270 transitions. [2021-03-26 08:08:55,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:55,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1270 transitions. [2021-03-26 08:08:55,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 84.66666666666667) internal successors, (1270), 15 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:55,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 210.0) internal successors, (3360), 16 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:55,575 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 210.0) internal successors, (3360), 16 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:55,575 INFO L185 Difference]: Start difference. First operand has 155 places, 204 transitions, 4316 flow. Second operand 15 states and 1270 transitions. [2021-03-26 08:08:55,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 214 transitions, 4884 flow [2021-03-26 08:08:55,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 214 transitions, 4332 flow, removed 180 selfloop flow, removed 21 redundant places. [2021-03-26 08:08:55,612 INFO L241 Difference]: Finished difference. Result has 149 places, 206 transitions, 4170 flow [2021-03-26 08:08:55,612 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=3778, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4170, PETRI_PLACES=149, PETRI_TRANSITIONS=206} [2021-03-26 08:08:55,612 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 118 predicate places. [2021-03-26 08:08:55,612 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:55,612 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 206 transitions, 4170 flow [2021-03-26 08:08:55,612 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 206 transitions, 4170 flow [2021-03-26 08:08:55,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 206 transitions, 4170 flow [2021-03-26 08:08:55,649 INFO L129 PetriNetUnfolder]: 169/558 cut-off events. [2021-03-26 08:08:55,649 INFO L130 PetriNetUnfolder]: For 6414/6587 co-relation queries the response was YES. [2021-03-26 08:08:55,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3532 conditions, 558 events. 169/558 cut-off events. For 6414/6587 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4217 event pairs, 0 based on Foata normal form. 7/557 useless extension candidates. Maximal degree in co-relation 3481. Up to 160 conditions per place. [2021-03-26 08:08:55,654 INFO L142 LiptonReduction]: Number of co-enabled transitions 1066 [2021-03-26 08:08:55,770 INFO L154 LiptonReduction]: Checked pairs total: 457 [2021-03-26 08:08:55,771 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 08:08:55,771 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-03-26 08:08:55,772 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 206 transitions, 4172 flow [2021-03-26 08:08:55,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:55,772 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:55,773 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:55,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:55,988 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:55,989 INFO L82 PathProgramCache]: Analyzing trace with hash -916818067, now seen corresponding path program 1 times [2021-03-26 08:08:55,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:55,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903328224] [2021-03-26 08:08:55,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:56,011 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:56,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:08:56,021 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:56,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,028 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:08:56,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:56,035 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:56,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:56,044 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:56,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:56,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903328224] [2021-03-26 08:08:56,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524454581] [2021-03-26 08:08:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:56,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:08:56,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:56,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:56,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:56,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:56,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:56,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:56,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:56,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:56,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:56,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:08:56,172 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:08:56,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:56,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:08:56,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:56,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:56,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:56,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:56,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:56,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:56,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:56,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:56,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,198 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:08:56,198 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:08:56,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:08:56,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:56,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:56,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:56,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:08:56,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:56,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:56,216 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:56,216 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:56,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:56,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 08:08:56,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240928204] [2021-03-26 08:08:56,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 08:08:56,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:56,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 08:08:56,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-03-26 08:08:56,224 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 215 [2021-03-26 08:08:56,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 206 transitions, 4172 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:56,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:56,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 215 [2021-03-26 08:08:56,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:56,901 INFO L129 PetriNetUnfolder]: 178/593 cut-off events. [2021-03-26 08:08:56,901 INFO L130 PetriNetUnfolder]: For 7825/8156 co-relation queries the response was YES. [2021-03-26 08:08:56,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 593 events. 178/593 cut-off events. For 7825/8156 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4488 event pairs, 0 based on Foata normal form. 58/647 useless extension candidates. Maximal degree in co-relation 4023. Up to 179 conditions per place. [2021-03-26 08:08:56,906 INFO L132 encePairwiseOnDemand]: 132/215 looper letters, 61 selfloop transitions, 162 changer transitions 0/235 dead transitions. [2021-03-26 08:08:56,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 235 transitions, 5064 flow [2021-03-26 08:08:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-26 08:08:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-26 08:08:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1836 transitions. [2021-03-26 08:08:56,908 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38816067653276953 [2021-03-26 08:08:56,908 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1836 transitions. [2021-03-26 08:08:56,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1836 transitions. [2021-03-26 08:08:56,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:56,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1836 transitions. [2021-03-26 08:08:56,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 83.45454545454545) internal successors, (1836), 22 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:56,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 215.0) internal successors, (4945), 23 states have internal predecessors, (4945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:56,913 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 215.0) internal successors, (4945), 23 states have internal predecessors, (4945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:56,913 INFO L185 Difference]: Start difference. First operand has 149 places, 206 transitions, 4172 flow. Second operand 22 states and 1836 transitions. [2021-03-26 08:08:56,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 235 transitions, 5064 flow [2021-03-26 08:08:56,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 235 transitions, 4905 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-03-26 08:08:56,943 INFO L241 Difference]: Finished difference. Result has 167 places, 229 transitions, 4920 flow [2021-03-26 08:08:56,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=4014, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4920, PETRI_PLACES=167, PETRI_TRANSITIONS=229} [2021-03-26 08:08:56,943 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 136 predicate places. [2021-03-26 08:08:56,943 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:56,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 229 transitions, 4920 flow [2021-03-26 08:08:56,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 229 transitions, 4920 flow [2021-03-26 08:08:56,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 229 transitions, 4920 flow [2021-03-26 08:08:56,986 INFO L129 PetriNetUnfolder]: 178/593 cut-off events. [2021-03-26 08:08:56,986 INFO L130 PetriNetUnfolder]: For 8011/8148 co-relation queries the response was YES. [2021-03-26 08:08:56,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3985 conditions, 593 events. 178/593 cut-off events. For 8011/8148 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4566 event pairs, 0 based on Foata normal form. 10/599 useless extension candidates. Maximal degree in co-relation 3930. Up to 164 conditions per place. [2021-03-26 08:08:56,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 1160 [2021-03-26 08:08:57,173 INFO L154 LiptonReduction]: Checked pairs total: 671 [2021-03-26 08:08:57,174 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 08:08:57,174 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-26 08:08:57,174 INFO L480 AbstractCegarLoop]: Abstraction has has 167 places, 229 transitions, 4931 flow [2021-03-26 08:08:57,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:57,175 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:57,175 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:57,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-03-26 08:08:57,390 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:57,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1012692790, now seen corresponding path program 1 times [2021-03-26 08:08:57,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:57,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222112875] [2021-03-26 08:08:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:57,408 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:57,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,413 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-26 08:08:57,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:57,420 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-26 08:08:57,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:57,427 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:57,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:57,435 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:08:57,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:57,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222112875] [2021-03-26 08:08:57,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694766626] [2021-03-26 08:08:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:57,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:57,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:57,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:57,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:57,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:57,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:57,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:57,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:57,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:57,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:57,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:57,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:57,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:57,516 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-26 08:08:57,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:57,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:57,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:57,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:57,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:57,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:57,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:57,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:57,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:57,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:57,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:57,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:57,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:57,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:57,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:57,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:08:57,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:57,545 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:57,545 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:57,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:57,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:57,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:08:57,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267092935] [2021-03-26 08:08:57,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:08:57,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:57,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:08:57,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:08:57,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 222 [2021-03-26 08:08:57,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 229 transitions, 4931 flow. Second operand has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:57,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:57,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 222 [2021-03-26 08:08:57,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:58,018 INFO L129 PetriNetUnfolder]: 180/601 cut-off events. [2021-03-26 08:08:58,018 INFO L130 PetriNetUnfolder]: For 9025/9266 co-relation queries the response was YES. [2021-03-26 08:08:58,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4369 conditions, 601 events. 180/601 cut-off events. For 9025/9266 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4642 event pairs, 0 based on Foata normal form. 14/612 useless extension candidates. Maximal degree in co-relation 4312. Up to 291 conditions per place. [2021-03-26 08:08:58,024 INFO L132 encePairwiseOnDemand]: 190/222 looper letters, 177 selfloop transitions, 48 changer transitions 0/237 dead transitions. [2021-03-26 08:08:58,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 237 transitions, 5479 flow [2021-03-26 08:08:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 08:08:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 08:08:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 724 transitions. [2021-03-26 08:08:58,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40765765765765766 [2021-03-26 08:08:58,025 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 724 transitions. [2021-03-26 08:08:58,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 724 transitions. [2021-03-26 08:08:58,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:58,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 724 transitions. [2021-03-26 08:08:58,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 90.5) internal successors, (724), 8 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:58,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:58,027 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:58,027 INFO L185 Difference]: Start difference. First operand has 167 places, 229 transitions, 4931 flow. Second operand 8 states and 724 transitions. [2021-03-26 08:08:58,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 237 transitions, 5479 flow [2021-03-26 08:08:58,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 237 transitions, 5197 flow, removed 102 selfloop flow, removed 12 redundant places. [2021-03-26 08:08:58,062 INFO L241 Difference]: Finished difference. Result has 164 places, 231 transitions, 4830 flow [2021-03-26 08:08:58,062 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=4649, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4830, PETRI_PLACES=164, PETRI_TRANSITIONS=231} [2021-03-26 08:08:58,062 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 133 predicate places. [2021-03-26 08:08:58,062 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:58,062 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 231 transitions, 4830 flow [2021-03-26 08:08:58,062 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 231 transitions, 4830 flow [2021-03-26 08:08:58,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 231 transitions, 4830 flow [2021-03-26 08:08:58,106 INFO L129 PetriNetUnfolder]: 180/601 cut-off events. [2021-03-26 08:08:58,106 INFO L130 PetriNetUnfolder]: For 7971/8058 co-relation queries the response was YES. [2021-03-26 08:08:58,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4003 conditions, 601 events. 180/601 cut-off events. For 7971/8058 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4651 event pairs, 0 based on Foata normal form. 5/602 useless extension candidates. Maximal degree in co-relation 3946. Up to 160 conditions per place. [2021-03-26 08:08:58,112 INFO L142 LiptonReduction]: Number of co-enabled transitions 1170 [2021-03-26 08:08:58,175 INFO L154 LiptonReduction]: Checked pairs total: 241 [2021-03-26 08:08:58,175 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 08:08:58,175 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-26 08:08:58,175 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 231 transitions, 4832 flow [2021-03-26 08:08:58,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 78.0) internal successors, (936), 12 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:58,176 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:58,176 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:58,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:58,390 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:58,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1047923202, now seen corresponding path program 1 times [2021-03-26 08:08:58,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:58,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195036760] [2021-03-26 08:08:58,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:58,409 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:58,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,414 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:08:58,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,420 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:08:58,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:58,426 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:08:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:08:58,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:58,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:58,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195036760] [2021-03-26 08:08:58,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866096790] [2021-03-26 08:08:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:08:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:58,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:08:58,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:08:58,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:58,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:58,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:58,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:58,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:58,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:58,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:58,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:58,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:08:58,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:08:58,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,521 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:08:58,521 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:08:58,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:08:58,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:08:58,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:08:58,534 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-26 08:08:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:08:58,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:08:58,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:58,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:08:58,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:08:58,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:08:58,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:08:58,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:08:58,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:58,563 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:08:58,563 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:08:58,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:08:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:58,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:08:58,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 08:08:58,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590666859] [2021-03-26 08:08:58,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 08:08:58,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:58,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 08:08:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-26 08:08:58,570 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 224 [2021-03-26 08:08:58,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 231 transitions, 4832 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:58,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:58,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 224 [2021-03-26 08:08:58,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:08:59,208 INFO L129 PetriNetUnfolder]: 182/616 cut-off events. [2021-03-26 08:08:59,208 INFO L130 PetriNetUnfolder]: For 9636/9885 co-relation queries the response was YES. [2021-03-26 08:08:59,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4429 conditions, 616 events. 182/616 cut-off events. For 9636/9885 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4842 event pairs, 0 based on Foata normal form. 35/648 useless extension candidates. Maximal degree in co-relation 4370. Up to 195 conditions per place. [2021-03-26 08:08:59,213 INFO L132 encePairwiseOnDemand]: 139/224 looper letters, 79 selfloop transitions, 159 changer transitions 0/250 dead transitions. [2021-03-26 08:08:59,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 250 transitions, 5567 flow [2021-03-26 08:08:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 08:08:59,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 08:08:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1448 transitions. [2021-03-26 08:08:59,215 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3802521008403361 [2021-03-26 08:08:59,215 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1448 transitions. [2021-03-26 08:08:59,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1448 transitions. [2021-03-26 08:08:59,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:08:59,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1448 transitions. [2021-03-26 08:08:59,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 85.17647058823529) internal successors, (1448), 17 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:59,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 224.0) internal successors, (4032), 18 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:59,218 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 224.0) internal successors, (4032), 18 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:59,218 INFO L185 Difference]: Start difference. First operand has 164 places, 231 transitions, 4832 flow. Second operand 17 states and 1448 transitions. [2021-03-26 08:08:59,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 250 transitions, 5567 flow [2021-03-26 08:08:59,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 250 transitions, 5508 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 08:08:59,254 INFO L241 Difference]: Finished difference. Result has 178 places, 242 transitions, 5405 flow [2021-03-26 08:08:59,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=4773, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5405, PETRI_PLACES=178, PETRI_TRANSITIONS=242} [2021-03-26 08:08:59,254 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 147 predicate places. [2021-03-26 08:08:59,254 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:08:59,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 242 transitions, 5405 flow [2021-03-26 08:08:59,255 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 242 transitions, 5405 flow [2021-03-26 08:08:59,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 178 places, 242 transitions, 5405 flow [2021-03-26 08:08:59,301 INFO L129 PetriNetUnfolder]: 183/616 cut-off events. [2021-03-26 08:08:59,301 INFO L130 PetriNetUnfolder]: For 9378/9542 co-relation queries the response was YES. [2021-03-26 08:08:59,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4329 conditions, 616 events. 183/616 cut-off events. For 9378/9542 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4823 event pairs, 0 based on Foata normal form. 11/621 useless extension candidates. Maximal degree in co-relation 4269. Up to 160 conditions per place. [2021-03-26 08:08:59,307 INFO L142 LiptonReduction]: Number of co-enabled transitions 1212 [2021-03-26 08:08:59,445 INFO L154 LiptonReduction]: Checked pairs total: 702 [2021-03-26 08:08:59,446 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 08:08:59,446 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 192 [2021-03-26 08:08:59,446 INFO L480 AbstractCegarLoop]: Abstraction has has 178 places, 242 transitions, 5409 flow [2021-03-26 08:08:59,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:59,446 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:08:59,446 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:08:59,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-26 08:08:59,661 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:08:59,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:08:59,661 INFO L82 PathProgramCache]: Analyzing trace with hash 467536710, now seen corresponding path program 1 times [2021-03-26 08:08:59,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:08:59,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461806976] [2021-03-26 08:08:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:08:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:08:59,671 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:08:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:59,676 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-26 08:08:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:08:59,682 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:08:59,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:08:59,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:08:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:08:59,696 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:08:59,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:08:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:08:59,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461806976] [2021-03-26 08:08:59,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:08:59,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 08:08:59,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742494690] [2021-03-26 08:08:59,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 08:08:59,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:08:59,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 08:08:59,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 08:08:59,706 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 230 [2021-03-26 08:08:59,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 242 transitions, 5409 flow. Second operand has 7 states, 7 states have (on average 77.85714285714286) internal successors, (545), 7 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:08:59,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:08:59,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 230 [2021-03-26 08:08:59,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:00,109 INFO L129 PetriNetUnfolder]: 187/636 cut-off events. [2021-03-26 08:09:00,109 INFO L130 PetriNetUnfolder]: For 9992/10294 co-relation queries the response was YES. [2021-03-26 08:09:00,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4830 conditions, 636 events. 187/636 cut-off events. For 9992/10294 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5033 event pairs, 0 based on Foata normal form. 24/657 useless extension candidates. Maximal degree in co-relation 4768. Up to 310 conditions per place. [2021-03-26 08:09:00,115 INFO L132 encePairwiseOnDemand]: 195/230 looper letters, 199 selfloop transitions, 48 changer transitions 0/259 dead transitions. [2021-03-26 08:09:00,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 259 transitions, 6272 flow [2021-03-26 08:09:00,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:09:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:09:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 669 transitions. [2021-03-26 08:09:00,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.415527950310559 [2021-03-26 08:09:00,116 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 669 transitions. [2021-03-26 08:09:00,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 669 transitions. [2021-03-26 08:09:00,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:00,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 669 transitions. [2021-03-26 08:09:00,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:00,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:00,118 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:00,118 INFO L185 Difference]: Start difference. First operand has 178 places, 242 transitions, 5409 flow. Second operand 7 states and 669 transitions. [2021-03-26 08:09:00,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 259 transitions, 6272 flow [2021-03-26 08:09:00,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 259 transitions, 6150 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-03-26 08:09:00,164 INFO L241 Difference]: Finished difference. Result has 177 places, 249 transitions, 5662 flow [2021-03-26 08:09:00,164 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=5287, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5662, PETRI_PLACES=177, PETRI_TRANSITIONS=249} [2021-03-26 08:09:00,164 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 146 predicate places. [2021-03-26 08:09:00,164 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:00,164 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 249 transitions, 5662 flow [2021-03-26 08:09:00,164 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 249 transitions, 5662 flow [2021-03-26 08:09:00,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 177 places, 249 transitions, 5662 flow [2021-03-26 08:09:00,214 INFO L129 PetriNetUnfolder]: 188/636 cut-off events. [2021-03-26 08:09:00,214 INFO L130 PetriNetUnfolder]: For 10017/10174 co-relation queries the response was YES. [2021-03-26 08:09:00,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4550 conditions, 636 events. 188/636 cut-off events. For 10017/10174 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5022 event pairs, 0 based on Foata normal form. 14/644 useless extension candidates. Maximal degree in co-relation 4487. Up to 165 conditions per place. [2021-03-26 08:09:00,222 INFO L142 LiptonReduction]: Number of co-enabled transitions 1240 [2021-03-26 08:09:00,308 INFO L154 LiptonReduction]: Checked pairs total: 303 [2021-03-26 08:09:00,308 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 08:09:00,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-03-26 08:09:00,308 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 249 transitions, 5662 flow [2021-03-26 08:09:00,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 77.85714285714286) internal successors, (545), 7 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:00,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:00,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:00,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 08:09:00,309 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:00,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:00,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1098666967, now seen corresponding path program 1 times [2021-03-26 08:09:00,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:00,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139162134] [2021-03-26 08:09:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:00,320 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:00,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,325 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-26 08:09:00,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,330 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-26 08:09:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,337 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:00,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:00,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139162134] [2021-03-26 08:09:00,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888445739] [2021-03-26 08:09:00,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:00,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:09:00,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:00,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:00,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:00,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:00,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:00,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:00,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:00,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:00,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:00,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:00,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:00,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:00,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:00,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:00,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:00,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:00,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:00,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:00,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:00,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:00,466 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:00,466 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:00,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:00,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:00,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:09:00,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699070848] [2021-03-26 08:09:00,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:09:00,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:00,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:09:00,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:09:00,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 233 [2021-03-26 08:09:00,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 249 transitions, 5662 flow. Second operand has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:00,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:00,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 233 [2021-03-26 08:09:00,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:01,007 INFO L129 PetriNetUnfolder]: 206/688 cut-off events. [2021-03-26 08:09:01,007 INFO L130 PetriNetUnfolder]: For 11756/12041 co-relation queries the response was YES. [2021-03-26 08:09:01,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5312 conditions, 688 events. 206/688 cut-off events. For 11756/12041 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5467 event pairs, 0 based on Foata normal form. 48/733 useless extension candidates. Maximal degree in co-relation 5247. Up to 306 conditions per place. [2021-03-26 08:09:01,013 INFO L132 encePairwiseOnDemand]: 151/233 looper letters, 147 selfloop transitions, 116 changer transitions 0/275 dead transitions. [2021-03-26 08:09:01,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 275 transitions, 6675 flow [2021-03-26 08:09:01,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:09:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:09:01,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 750 transitions. [2021-03-26 08:09:01,015 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4598405885959534 [2021-03-26 08:09:01,015 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 750 transitions. [2021-03-26 08:09:01,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 750 transitions. [2021-03-26 08:09:01,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:01,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 750 transitions. [2021-03-26 08:09:01,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:01,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 233.0) internal successors, (1864), 8 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:01,017 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 233.0) internal successors, (1864), 8 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:01,017 INFO L185 Difference]: Start difference. First operand has 177 places, 249 transitions, 5662 flow. Second operand 7 states and 750 transitions. [2021-03-26 08:09:01,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 275 transitions, 6675 flow [2021-03-26 08:09:01,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 275 transitions, 6628 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 08:09:01,065 INFO L241 Difference]: Finished difference. Result has 182 places, 272 transitions, 6407 flow [2021-03-26 08:09:01,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=5616, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6407, PETRI_PLACES=182, PETRI_TRANSITIONS=272} [2021-03-26 08:09:01,065 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 151 predicate places. [2021-03-26 08:09:01,065 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:01,065 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 272 transitions, 6407 flow [2021-03-26 08:09:01,065 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 272 transitions, 6407 flow [2021-03-26 08:09:01,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 182 places, 272 transitions, 6407 flow [2021-03-26 08:09:01,121 INFO L129 PetriNetUnfolder]: 207/688 cut-off events. [2021-03-26 08:09:01,121 INFO L130 PetriNetUnfolder]: For 12481/12753 co-relation queries the response was YES. [2021-03-26 08:09:01,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5204 conditions, 688 events. 207/688 cut-off events. For 12481/12753 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5499 event pairs, 0 based on Foata normal form. 14/693 useless extension candidates. Maximal degree in co-relation 5139. Up to 179 conditions per place. [2021-03-26 08:09:01,128 INFO L142 LiptonReduction]: Number of co-enabled transitions 1334 [2021-03-26 08:09:01,264 INFO L154 LiptonReduction]: Checked pairs total: 729 [2021-03-26 08:09:01,264 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 08:09:01,265 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-26 08:09:01,265 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 272 transitions, 6413 flow [2021-03-26 08:09:01,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:01,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:01,265 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:01,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-03-26 08:09:01,480 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:01,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:01,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1696105475, now seen corresponding path program 1 times [2021-03-26 08:09:01,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:01,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174837022] [2021-03-26 08:09:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:01,500 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:01,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:01,510 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:09:01,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,517 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:09:01,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:01,525 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:09:01,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:09:01,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:09:01,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:01,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174837022] [2021-03-26 08:09:01,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118312475] [2021-03-26 08:09:01,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:01,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:01,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:01,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:01,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:01,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:01,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:01,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:01,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:01,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:01,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:01,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,640 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:01,640 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:01,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:01,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:09:01,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:09:01,655 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-26 08:09:01,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:09:01,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:09:01,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:01,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:09:01,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:01,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:01,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:09:01,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:01,681 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:09:01,681 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:09:01,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:01,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:01,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:01,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 08:09:01,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65253252] [2021-03-26 08:09:01,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 08:09:01,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:01,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 08:09:01,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-03-26 08:09:01,689 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 238 [2021-03-26 08:09:01,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 272 transitions, 6413 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:01,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:01,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 238 [2021-03-26 08:09:01,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:02,615 INFO L129 PetriNetUnfolder]: 209/704 cut-off events. [2021-03-26 08:09:02,615 INFO L130 PetriNetUnfolder]: For 13439/13697 co-relation queries the response was YES. [2021-03-26 08:09:02,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5701 conditions, 704 events. 209/704 cut-off events. For 13439/13697 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5724 event pairs, 0 based on Foata normal form. 48/750 useless extension candidates. Maximal degree in co-relation 5634. Up to 201 conditions per place. [2021-03-26 08:09:02,621 INFO L132 encePairwiseOnDemand]: 136/238 looper letters, 68 selfloop transitions, 209 changer transitions 0/289 dead transitions. [2021-03-26 08:09:02,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 289 transitions, 7267 flow [2021-03-26 08:09:02,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-26 08:09:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-03-26 08:09:02,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1942 transitions. [2021-03-26 08:09:02,623 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3547679941541834 [2021-03-26 08:09:02,623 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1942 transitions. [2021-03-26 08:09:02,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1942 transitions. [2021-03-26 08:09:02,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:02,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1942 transitions. [2021-03-26 08:09:02,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 84.43478260869566) internal successors, (1942), 23 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:02,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 238.0) internal successors, (5712), 24 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:02,628 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 238.0) internal successors, (5712), 24 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:02,628 INFO L185 Difference]: Start difference. First operand has 182 places, 272 transitions, 6413 flow. Second operand 23 states and 1942 transitions. [2021-03-26 08:09:02,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 289 transitions, 7267 flow [2021-03-26 08:09:02,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 289 transitions, 7210 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-26 08:09:02,685 INFO L241 Difference]: Finished difference. Result has 204 places, 279 transitions, 7107 flow [2021-03-26 08:09:02,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=6358, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7107, PETRI_PLACES=204, PETRI_TRANSITIONS=279} [2021-03-26 08:09:02,685 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 173 predicate places. [2021-03-26 08:09:02,685 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:02,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 279 transitions, 7107 flow [2021-03-26 08:09:02,685 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 279 transitions, 7107 flow [2021-03-26 08:09:02,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 279 transitions, 7107 flow [2021-03-26 08:09:02,746 INFO L129 PetriNetUnfolder]: 210/704 cut-off events. [2021-03-26 08:09:02,746 INFO L130 PetriNetUnfolder]: For 13628/13844 co-relation queries the response was YES. [2021-03-26 08:09:02,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5629 conditions, 704 events. 210/704 cut-off events. For 13628/13844 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5738 event pairs, 0 based on Foata normal form. 21/719 useless extension candidates. Maximal degree in co-relation 5561. Up to 186 conditions per place. [2021-03-26 08:09:02,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 1362 [2021-03-26 08:09:02,855 INFO L154 LiptonReduction]: Checked pairs total: 404 [2021-03-26 08:09:02,855 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 08:09:02,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-03-26 08:09:02,855 INFO L480 AbstractCegarLoop]: Abstraction has has 204 places, 279 transitions, 7109 flow [2021-03-26 08:09:02,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:02,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:02,856 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:03,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-03-26 08:09:03,070 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:03,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:03,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1095538912, now seen corresponding path program 1 times [2021-03-26 08:09:03,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:03,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814031176] [2021-03-26 08:09:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:03,086 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:03,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,090 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-26 08:09:03,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:09:03,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:03,102 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:03,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:03,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814031176] [2021-03-26 08:09:03,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654465379] [2021-03-26 08:09:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:03,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:09:03,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:03,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:03,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:03,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:03,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:03,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:03,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:03,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:03,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:03,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:03,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:03,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:03,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,201 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:03,201 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:03,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:03,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:03,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:03,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:03,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:03,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:03,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:03,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:03,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:03,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:03,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:09:03,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047181485] [2021-03-26 08:09:03,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:09:03,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:03,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:09:03,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:09:03,223 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 241 [2021-03-26 08:09:03,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 279 transitions, 7109 flow. Second operand has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:03,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:03,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 241 [2021-03-26 08:09:03,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:03,885 INFO L129 PetriNetUnfolder]: 232/772 cut-off events. [2021-03-26 08:09:03,885 INFO L130 PetriNetUnfolder]: For 16239/16542 co-relation queries the response was YES. [2021-03-26 08:09:03,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6650 conditions, 772 events. 232/772 cut-off events. For 16239/16542 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6295 event pairs, 0 based on Foata normal form. 62/832 useless extension candidates. Maximal degree in co-relation 6580. Up to 318 conditions per place. [2021-03-26 08:09:03,891 INFO L132 encePairwiseOnDemand]: 140/241 looper letters, 126 selfloop transitions, 169 changer transitions 0/307 dead transitions. [2021-03-26 08:09:03,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 307 transitions, 8354 flow [2021-03-26 08:09:03,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 08:09:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 08:09:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 946 transitions. [2021-03-26 08:09:03,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43614568925772246 [2021-03-26 08:09:03,892 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 946 transitions. [2021-03-26 08:09:03,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 946 transitions. [2021-03-26 08:09:03,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:03,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 946 transitions. [2021-03-26 08:09:03,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.11111111111111) internal successors, (946), 9 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:03,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:03,894 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:03,895 INFO L185 Difference]: Start difference. First operand has 204 places, 279 transitions, 7109 flow. Second operand 9 states and 946 transitions. [2021-03-26 08:09:03,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 307 transitions, 8354 flow [2021-03-26 08:09:03,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 307 transitions, 8075 flow, removed 41 selfloop flow, removed 14 redundant places. [2021-03-26 08:09:03,960 INFO L241 Difference]: Finished difference. Result has 200 places, 304 transitions, 7925 flow [2021-03-26 08:09:03,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=6833, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7925, PETRI_PLACES=200, PETRI_TRANSITIONS=304} [2021-03-26 08:09:03,960 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 169 predicate places. [2021-03-26 08:09:03,960 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:03,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 304 transitions, 7925 flow [2021-03-26 08:09:03,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 304 transitions, 7925 flow [2021-03-26 08:09:03,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 304 transitions, 7925 flow [2021-03-26 08:09:04,059 INFO L129 PetriNetUnfolder]: 232/772 cut-off events. [2021-03-26 08:09:04,059 INFO L130 PetriNetUnfolder]: For 17426/17656 co-relation queries the response was YES. [2021-03-26 08:09:04,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6453 conditions, 772 events. 232/772 cut-off events. For 17426/17656 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6340 event pairs, 0 based on Foata normal form. 42/808 useless extension candidates. Maximal degree in co-relation 6385. Up to 214 conditions per place. [2021-03-26 08:09:04,069 INFO L142 LiptonReduction]: Number of co-enabled transitions 1468 [2021-03-26 08:09:04,347 INFO L154 LiptonReduction]: Checked pairs total: 2106 [2021-03-26 08:09:04,347 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 08:09:04,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 387 [2021-03-26 08:09:04,348 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 304 transitions, 7945 flow [2021-03-26 08:09:04,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:04,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:04,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:04,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:04,563 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:04,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:04,563 INFO L82 PathProgramCache]: Analyzing trace with hash 886000205, now seen corresponding path program 1 times [2021-03-26 08:09:04,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:04,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660980244] [2021-03-26 08:09:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:04,573 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:04,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:04,583 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 08:09:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,590 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 08:09:04,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:04,597 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:04,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:04,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660980244] [2021-03-26 08:09:04,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534972359] [2021-03-26 08:09:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:04,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:04,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:04,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:04,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:04,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:04,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:04,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:04,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:04,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:04,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:04,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:04,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:04,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:04,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,698 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:04,699 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:04,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:04,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:04,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:04,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:04,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:04,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:04,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:04,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:04,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:09:04,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221452525] [2021-03-26 08:09:04,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:09:04,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:04,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:09:04,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:09:04,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 253 [2021-03-26 08:09:04,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 304 transitions, 7945 flow. Second operand has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:04,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:04,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 253 [2021-03-26 08:09:04,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:05,630 INFO L129 PetriNetUnfolder]: 249/822 cut-off events. [2021-03-26 08:09:05,630 INFO L130 PetriNetUnfolder]: For 19034/19315 co-relation queries the response was YES. [2021-03-26 08:09:05,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7356 conditions, 822 events. 249/822 cut-off events. For 19034/19315 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 6830 event pairs, 0 based on Foata normal form. 45/864 useless extension candidates. Maximal degree in co-relation 7286. Up to 348 conditions per place. [2021-03-26 08:09:05,639 INFO L132 encePairwiseOnDemand]: 150/253 looper letters, 155 selfloop transitions, 151 changer transitions 0/318 dead transitions. [2021-03-26 08:09:05,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 318 transitions, 8982 flow [2021-03-26 08:09:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 08:09:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 08:09:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1280 transitions. [2021-03-26 08:09:05,641 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38917604134995437 [2021-03-26 08:09:05,641 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1280 transitions. [2021-03-26 08:09:05,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1280 transitions. [2021-03-26 08:09:05,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:05,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1280 transitions. [2021-03-26 08:09:05,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 98.46153846153847) internal successors, (1280), 13 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:05,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 253.0) internal successors, (3542), 14 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:05,644 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 253.0) internal successors, (3542), 14 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:05,644 INFO L185 Difference]: Start difference. First operand has 200 places, 304 transitions, 7945 flow. Second operand 13 states and 1280 transitions. [2021-03-26 08:09:05,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 318 transitions, 8982 flow [2021-03-26 08:09:05,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 318 transitions, 8877 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-26 08:09:05,729 INFO L241 Difference]: Finished difference. Result has 209 places, 317 transitions, 8584 flow [2021-03-26 08:09:05,729 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=7840, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8584, PETRI_PLACES=209, PETRI_TRANSITIONS=317} [2021-03-26 08:09:05,729 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 178 predicate places. [2021-03-26 08:09:05,729 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:05,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 317 transitions, 8584 flow [2021-03-26 08:09:05,730 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 317 transitions, 8584 flow [2021-03-26 08:09:05,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 317 transitions, 8584 flow [2021-03-26 08:09:05,833 INFO L129 PetriNetUnfolder]: 248/822 cut-off events. [2021-03-26 08:09:05,833 INFO L130 PetriNetUnfolder]: For 19128/19346 co-relation queries the response was YES. [2021-03-26 08:09:05,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7139 conditions, 822 events. 248/822 cut-off events. For 19128/19346 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 6891 event pairs, 0 based on Foata normal form. 37/852 useless extension candidates. Maximal degree in co-relation 7070. Up to 240 conditions per place. [2021-03-26 08:09:05,843 INFO L142 LiptonReduction]: Number of co-enabled transitions 1524 [2021-03-26 08:09:05,959 INFO L154 LiptonReduction]: Checked pairs total: 399 [2021-03-26 08:09:05,959 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 08:09:05,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-03-26 08:09:05,959 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 317 transitions, 8584 flow [2021-03-26 08:09:05,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:05,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:05,960 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:06,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:06,174 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:06,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:06,174 INFO L82 PathProgramCache]: Analyzing trace with hash 885999988, now seen corresponding path program 1 times [2021-03-26 08:09:06,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:06,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806036935] [2021-03-26 08:09:06,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:06,185 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:06,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:06,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:06,202 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:09:06,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:06,209 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:06,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:06,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806036935] [2021-03-26 08:09:06,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915424753] [2021-03-26 08:09:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:06,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:06,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:06,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:06,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:06,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:06,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:06,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:06,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:06,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:06,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:06,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:06,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:06,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:06,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:06,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,310 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:06,310 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:06,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:06,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:06,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:09:06,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:06,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:06,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:09:06,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:06,327 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-03-26 08:09:06,327 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-03-26 08:09:06,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 08:09:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:06,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:06,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:09:06,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476673810] [2021-03-26 08:09:06,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:09:06,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:06,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:09:06,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:09:06,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 256 [2021-03-26 08:09:06,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 317 transitions, 8584 flow. Second operand has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:06,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:06,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 256 [2021-03-26 08:09:06,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:07,287 INFO L129 PetriNetUnfolder]: 289/949 cut-off events. [2021-03-26 08:09:07,288 INFO L130 PetriNetUnfolder]: For 22875/23151 co-relation queries the response was YES. [2021-03-26 08:09:07,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8723 conditions, 949 events. 289/949 cut-off events. For 22875/23151 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 8091 event pairs, 0 based on Foata normal form. 37/983 useless extension candidates. Maximal degree in co-relation 8652. Up to 352 conditions per place. [2021-03-26 08:09:07,296 INFO L132 encePairwiseOnDemand]: 133/256 looper letters, 111 selfloop transitions, 234 changer transitions 0/357 dead transitions. [2021-03-26 08:09:07,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 357 transitions, 10338 flow [2021-03-26 08:09:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 08:09:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 08:09:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1222 transitions. [2021-03-26 08:09:07,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3977864583333333 [2021-03-26 08:09:07,298 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1222 transitions. [2021-03-26 08:09:07,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1222 transitions. [2021-03-26 08:09:07,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:07,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1222 transitions. [2021-03-26 08:09:07,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 101.83333333333333) internal successors, (1222), 12 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:07,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 256.0) internal successors, (3328), 13 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:07,301 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 256.0) internal successors, (3328), 13 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:07,301 INFO L185 Difference]: Start difference. First operand has 209 places, 317 transitions, 8584 flow. Second operand 12 states and 1222 transitions. [2021-03-26 08:09:07,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 357 transitions, 10338 flow [2021-03-26 08:09:07,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 357 transitions, 10107 flow, removed 48 selfloop flow, removed 8 redundant places. [2021-03-26 08:09:07,395 INFO L241 Difference]: Finished difference. Result has 214 places, 355 transitions, 10089 flow [2021-03-26 08:09:07,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=8353, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10089, PETRI_PLACES=214, PETRI_TRANSITIONS=355} [2021-03-26 08:09:07,395 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 183 predicate places. [2021-03-26 08:09:07,395 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:07,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 355 transitions, 10089 flow [2021-03-26 08:09:07,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 355 transitions, 10089 flow [2021-03-26 08:09:07,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 355 transitions, 10089 flow [2021-03-26 08:09:07,543 INFO L129 PetriNetUnfolder]: 289/953 cut-off events. [2021-03-26 08:09:07,544 INFO L130 PetriNetUnfolder]: For 24210/24358 co-relation queries the response was YES. [2021-03-26 08:09:07,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8696 conditions, 953 events. 289/953 cut-off events. For 24210/24358 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 8218 event pairs, 0 based on Foata normal form. 40/990 useless extension candidates. Maximal degree in co-relation 8624. Up to 290 conditions per place. [2021-03-26 08:09:07,559 INFO L142 LiptonReduction]: Number of co-enabled transitions 1690 [2021-03-26 08:09:08,007 INFO L154 LiptonReduction]: Checked pairs total: 3468 [2021-03-26 08:09:08,007 INFO L156 LiptonReduction]: Total number of compositions: 17 [2021-03-26 08:09:08,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 612 [2021-03-26 08:09:08,008 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 355 transitions, 10117 flow [2021-03-26 08:09:08,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:08,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:08,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:08,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:08,222 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:08,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:08,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1176461880, now seen corresponding path program 1 times [2021-03-26 08:09:08,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:08,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960328476] [2021-03-26 08:09:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:08,243 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:08,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:08,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:09:08,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,262 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:09:08,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:08,270 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:08,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960328476] [2021-03-26 08:09:08,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387864591] [2021-03-26 08:09:08,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:08,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:08,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:08,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:08,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:08,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:08,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:08,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:08,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:08,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:08,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:08,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,364 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:08,365 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:08,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:08,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:08,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:09:08,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:08,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 08:09:08,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,382 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-03-26 08:09:08,382 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-03-26 08:09:08,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 08:09:08,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:08,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 08:09:08,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:08,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:08,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 08:09:08,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:08,396 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-03-26 08:09:08,396 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 08:09:08,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:08,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:08,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:09:08,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506462612] [2021-03-26 08:09:08,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:09:08,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:09:08,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:09:08,408 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 273 [2021-03-26 08:09:08,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 355 transitions, 10117 flow. Second operand has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:08,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:08,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 273 [2021-03-26 08:09:08,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:09,445 INFO L129 PetriNetUnfolder]: 344/1120 cut-off events. [2021-03-26 08:09:09,445 INFO L130 PetriNetUnfolder]: For 31290/31604 co-relation queries the response was YES. [2021-03-26 08:09:09,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11085 conditions, 1120 events. 344/1120 cut-off events. For 31290/31604 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 9785 event pairs, 0 based on Foata normal form. 46/1163 useless extension candidates. Maximal degree in co-relation 11011. Up to 402 conditions per place. [2021-03-26 08:09:09,456 INFO L132 encePairwiseOnDemand]: 137/273 looper letters, 123 selfloop transitions, 265 changer transitions 0/400 dead transitions. [2021-03-26 08:09:09,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 400 transitions, 12203 flow [2021-03-26 08:09:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 08:09:09,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 08:09:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1512 transitions. [2021-03-26 08:09:09,458 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36923076923076925 [2021-03-26 08:09:09,458 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1512 transitions. [2021-03-26 08:09:09,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1512 transitions. [2021-03-26 08:09:09,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:09,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1512 transitions. [2021-03-26 08:09:09,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 100.8) internal successors, (1512), 15 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:09,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 273.0) internal successors, (4368), 16 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:09,461 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 273.0) internal successors, (4368), 16 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:09,461 INFO L185 Difference]: Start difference. First operand has 214 places, 355 transitions, 10117 flow. Second operand 15 states and 1512 transitions. [2021-03-26 08:09:09,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 400 transitions, 12203 flow [2021-03-26 08:09:09,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 400 transitions, 12063 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-26 08:09:09,580 INFO L241 Difference]: Finished difference. Result has 224 places, 397 transitions, 11991 flow [2021-03-26 08:09:09,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=9977, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11991, PETRI_PLACES=224, PETRI_TRANSITIONS=397} [2021-03-26 08:09:09,580 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 193 predicate places. [2021-03-26 08:09:09,580 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:09,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 397 transitions, 11991 flow [2021-03-26 08:09:09,581 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 397 transitions, 11991 flow [2021-03-26 08:09:09,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 397 transitions, 11991 flow [2021-03-26 08:09:09,738 INFO L129 PetriNetUnfolder]: 344/1120 cut-off events. [2021-03-26 08:09:09,738 INFO L130 PetriNetUnfolder]: For 33617/33902 co-relation queries the response was YES. [2021-03-26 08:09:09,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11082 conditions, 1120 events. 344/1120 cut-off events. For 33617/33902 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 9950 event pairs, 0 based on Foata normal form. 75/1189 useless extension candidates. Maximal degree in co-relation 11008. Up to 361 conditions per place. [2021-03-26 08:09:09,753 INFO L142 LiptonReduction]: Number of co-enabled transitions 1874 [2021-03-26 08:09:10,222 INFO L154 LiptonReduction]: Checked pairs total: 4098 [2021-03-26 08:09:10,222 INFO L156 LiptonReduction]: Total number of compositions: 18 [2021-03-26 08:09:10,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 642 [2021-03-26 08:09:10,223 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 397 transitions, 12021 flow [2021-03-26 08:09:10,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:10,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:10,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:10,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-03-26 08:09:10,438 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:10,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:10,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1728771628, now seen corresponding path program 1 times [2021-03-26 08:09:10,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:10,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555619095] [2021-03-26 08:09:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:10,451 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:10,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,456 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:09:10,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,461 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:09:10,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:10,468 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:09:10,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:10,476 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 08:09:10,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:09:10,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:09:10,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:10,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555619095] [2021-03-26 08:09:10,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328621515] [2021-03-26 08:09:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:10,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:10,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:10,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:10,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:10,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:10,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:09:10,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:09:10,571 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:09:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:09:10,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:09:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:10,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:10,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:10,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:10,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:10,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:10,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:10,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,599 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:09:10,599 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:09:10,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:10,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:09:10,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:10,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:09:10,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 08:09:10,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 08:09:10,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:10,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 08:09:10,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:10,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 08:09:10,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 08:09:10,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:10,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:10,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:10,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:10,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 08:09:10,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530967221] [2021-03-26 08:09:10,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 08:09:10,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:10,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 08:09:10,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-03-26 08:09:10,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 291 [2021-03-26 08:09:10,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 397 transitions, 12021 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:10,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:10,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 291 [2021-03-26 08:09:10,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:11,658 INFO L129 PetriNetUnfolder]: 354/1155 cut-off events. [2021-03-26 08:09:11,659 INFO L130 PetriNetUnfolder]: For 34805/35140 co-relation queries the response was YES. [2021-03-26 08:09:11,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12056 conditions, 1155 events. 354/1155 cut-off events. For 34805/35140 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 10343 event pairs, 0 based on Foata normal form. 42/1194 useless extension candidates. Maximal degree in co-relation 11980. Up to 489 conditions per place. [2021-03-26 08:09:11,671 INFO L132 encePairwiseOnDemand]: 205/291 looper letters, 248 selfloop transitions, 163 changer transitions 0/423 dead transitions. [2021-03-26 08:09:11,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 423 transitions, 13435 flow [2021-03-26 08:09:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-26 08:09:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-26 08:09:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1758 transitions. [2021-03-26 08:09:11,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3020618556701031 [2021-03-26 08:09:11,673 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1758 transitions. [2021-03-26 08:09:11,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1758 transitions. [2021-03-26 08:09:11,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:11,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1758 transitions. [2021-03-26 08:09:11,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 87.9) internal successors, (1758), 20 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:11,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 291.0) internal successors, (6111), 21 states have internal predecessors, (6111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:11,677 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 291.0) internal successors, (6111), 21 states have internal predecessors, (6111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:11,677 INFO L185 Difference]: Start difference. First operand has 224 places, 397 transitions, 12021 flow. Second operand 20 states and 1758 transitions. [2021-03-26 08:09:11,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 423 transitions, 13435 flow [2021-03-26 08:09:11,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 423 transitions, 13198 flow, removed 74 selfloop flow, removed 6 redundant places. [2021-03-26 08:09:11,813 INFO L241 Difference]: Finished difference. Result has 240 places, 406 transitions, 12568 flow [2021-03-26 08:09:11,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=11796, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12568, PETRI_PLACES=240, PETRI_TRANSITIONS=406} [2021-03-26 08:09:11,813 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 209 predicate places. [2021-03-26 08:09:11,813 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:11,813 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 406 transitions, 12568 flow [2021-03-26 08:09:11,813 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 406 transitions, 12568 flow [2021-03-26 08:09:11,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 406 transitions, 12568 flow [2021-03-26 08:09:11,969 INFO L129 PetriNetUnfolder]: 352/1151 cut-off events. [2021-03-26 08:09:11,969 INFO L130 PetriNetUnfolder]: For 35240/35593 co-relation queries the response was YES. [2021-03-26 08:09:11,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11589 conditions, 1151 events. 352/1151 cut-off events. For 35240/35593 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 10385 event pairs, 0 based on Foata normal form. 37/1178 useless extension candidates. Maximal degree in co-relation 11511. Up to 378 conditions per place. [2021-03-26 08:09:11,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 1920 [2021-03-26 08:09:12,204 INFO L154 LiptonReduction]: Checked pairs total: 833 [2021-03-26 08:09:12,204 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 08:09:12,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 391 [2021-03-26 08:09:12,205 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 406 transitions, 12575 flow [2021-03-26 08:09:12,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:12,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:12,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:12,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:12,419 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:12,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:12,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1047888902, now seen corresponding path program 1 times [2021-03-26 08:09:12,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:12,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263702649] [2021-03-26 08:09:12,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:12,433 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:12,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,439 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 08:09:12,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,444 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 08:09:12,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:12,451 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:12,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:12,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263702649] [2021-03-26 08:09:12,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517346398] [2021-03-26 08:09:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:12,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 08:09:12,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:12,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:12,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:12,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:12,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:12,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:12,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:12,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:12,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:12,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:12,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,538 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:12,538 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:12,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:12,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:12,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:12,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:12,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:12,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:12,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:12,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:12,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:12,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:12,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:12,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:12,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:09:12,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775839320] [2021-03-26 08:09:12,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:09:12,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:12,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:09:12,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:09:12,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 296 [2021-03-26 08:09:12,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 406 transitions, 12575 flow. Second operand has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:12,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:12,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 296 [2021-03-26 08:09:12,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:13,344 INFO L129 PetriNetUnfolder]: 354/1166 cut-off events. [2021-03-26 08:09:13,345 INFO L130 PetriNetUnfolder]: For 33917/34311 co-relation queries the response was YES. [2021-03-26 08:09:13,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12398 conditions, 1166 events. 354/1166 cut-off events. For 33917/34311 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 10466 event pairs, 0 based on Foata normal form. 30/1193 useless extension candidates. Maximal degree in co-relation 12318. Up to 574 conditions per place. [2021-03-26 08:09:13,356 INFO L132 encePairwiseOnDemand]: 215/296 looper letters, 296 selfloop transitions, 102 changer transitions 0/410 dead transitions. [2021-03-26 08:09:13,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 410 transitions, 13582 flow [2021-03-26 08:09:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 08:09:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 08:09:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1222 transitions. [2021-03-26 08:09:13,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34403153153153154 [2021-03-26 08:09:13,358 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1222 transitions. [2021-03-26 08:09:13,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1222 transitions. [2021-03-26 08:09:13,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:13,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1222 transitions. [2021-03-26 08:09:13,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 101.83333333333333) internal successors, (1222), 12 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:13,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 296.0) internal successors, (3848), 13 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:13,361 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 296.0) internal successors, (3848), 13 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:13,361 INFO L185 Difference]: Start difference. First operand has 240 places, 406 transitions, 12575 flow. Second operand 12 states and 1222 transitions. [2021-03-26 08:09:13,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 410 transitions, 13582 flow [2021-03-26 08:09:13,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 410 transitions, 13354 flow, removed 18 selfloop flow, removed 13 redundant places. [2021-03-26 08:09:13,502 INFO L241 Difference]: Finished difference. Result has 240 places, 409 transitions, 12749 flow [2021-03-26 08:09:13,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=12348, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12749, PETRI_PLACES=240, PETRI_TRANSITIONS=409} [2021-03-26 08:09:13,502 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 209 predicate places. [2021-03-26 08:09:13,502 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:13,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 409 transitions, 12749 flow [2021-03-26 08:09:13,502 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 409 transitions, 12749 flow [2021-03-26 08:09:13,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 409 transitions, 12749 flow [2021-03-26 08:09:13,670 INFO L129 PetriNetUnfolder]: 353/1162 cut-off events. [2021-03-26 08:09:13,670 INFO L130 PetriNetUnfolder]: For 36292/36633 co-relation queries the response was YES. [2021-03-26 08:09:13,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11802 conditions, 1162 events. 353/1162 cut-off events. For 36292/36633 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 10571 event pairs, 0 based on Foata normal form. 38/1192 useless extension candidates. Maximal degree in co-relation 11722. Up to 382 conditions per place. [2021-03-26 08:09:13,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 1924 [2021-03-26 08:09:13,799 INFO L154 LiptonReduction]: Checked pairs total: 171 [2021-03-26 08:09:13,799 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 08:09:13,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 297 [2021-03-26 08:09:13,799 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 409 transitions, 12749 flow [2021-03-26 08:09:13,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:13,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:13,800 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:14,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-03-26 08:09:14,014 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:14,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:14,014 INFO L82 PathProgramCache]: Analyzing trace with hash 573740509, now seen corresponding path program 1 times [2021-03-26 08:09:14,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:14,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404665606] [2021-03-26 08:09:14,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:14,024 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:14,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:14,029 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-26 08:09:14,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:14,035 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-26 08:09:14,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:14,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:14,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:14,050 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 08:09:14,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:14,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:14,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404665606] [2021-03-26 08:09:14,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:09:14,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 08:09:14,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197815768] [2021-03-26 08:09:14,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 08:09:14,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:14,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 08:09:14,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 08:09:14,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 297 [2021-03-26 08:09:14,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 409 transitions, 12749 flow. Second operand has 7 states, 7 states have (on average 77.85714285714286) internal successors, (545), 7 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:14,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:14,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 297 [2021-03-26 08:09:14,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:14,704 INFO L129 PetriNetUnfolder]: 352/1167 cut-off events. [2021-03-26 08:09:14,705 INFO L130 PetriNetUnfolder]: For 35155/35560 co-relation queries the response was YES. [2021-03-26 08:09:14,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12424 conditions, 1167 events. 352/1167 cut-off events. For 35155/35560 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 10533 event pairs, 0 based on Foata normal form. 24/1188 useless extension candidates. Maximal degree in co-relation 12342. Up to 595 conditions per place. [2021-03-26 08:09:14,717 INFO L132 encePairwiseOnDemand]: 256/297 looper letters, 354 selfloop transitions, 60 changer transitions 0/426 dead transitions. [2021-03-26 08:09:14,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 426 transitions, 13918 flow [2021-03-26 08:09:14,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:09:14,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:09:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 739 transitions. [2021-03-26 08:09:14,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3554593554593555 [2021-03-26 08:09:14,719 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 739 transitions. [2021-03-26 08:09:14,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 739 transitions. [2021-03-26 08:09:14,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:14,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 739 transitions. [2021-03-26 08:09:14,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 105.57142857142857) internal successors, (739), 7 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:14,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:14,721 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:14,721 INFO L185 Difference]: Start difference. First operand has 240 places, 409 transitions, 12749 flow. Second operand 7 states and 739 transitions. [2021-03-26 08:09:14,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 426 transitions, 13918 flow [2021-03-26 08:09:14,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 426 transitions, 13782 flow, removed 19 selfloop flow, removed 7 redundant places. [2021-03-26 08:09:14,888 INFO L241 Difference]: Finished difference. Result has 240 places, 411 transitions, 12869 flow [2021-03-26 08:09:14,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=12613, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12869, PETRI_PLACES=240, PETRI_TRANSITIONS=411} [2021-03-26 08:09:14,889 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 209 predicate places. [2021-03-26 08:09:14,889 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:14,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 411 transitions, 12869 flow [2021-03-26 08:09:14,889 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 411 transitions, 12869 flow [2021-03-26 08:09:14,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 411 transitions, 12869 flow [2021-03-26 08:09:15,025 INFO L129 PetriNetUnfolder]: 351/1163 cut-off events. [2021-03-26 08:09:15,025 INFO L130 PetriNetUnfolder]: For 36923/37276 co-relation queries the response was YES. [2021-03-26 08:09:15,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11853 conditions, 1163 events. 351/1163 cut-off events. For 36923/37276 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 10610 event pairs, 0 based on Foata normal form. 40/1195 useless extension candidates. Maximal degree in co-relation 11771. Up to 382 conditions per place. [2021-03-26 08:09:15,040 INFO L142 LiptonReduction]: Number of co-enabled transitions 1932 [2021-03-26 08:09:15,175 INFO L154 LiptonReduction]: Checked pairs total: 342 [2021-03-26 08:09:15,175 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 08:09:15,175 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 286 [2021-03-26 08:09:15,176 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 411 transitions, 12869 flow [2021-03-26 08:09:15,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 77.85714285714286) internal successors, (545), 7 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:15,176 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:15,176 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:15,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-26 08:09:15,176 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:15,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:15,176 INFO L82 PathProgramCache]: Analyzing trace with hash -301708195, now seen corresponding path program 1 times [2021-03-26 08:09:15,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:15,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068305060] [2021-03-26 08:09:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:15,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:15,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068305060] [2021-03-26 08:09:15,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772879864] [2021-03-26 08:09:15,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:15,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 08:09:15,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:15,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:15,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:15,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:15,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:15,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:15,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:15,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:15,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:15,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:15,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:15,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:15,283 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-26 08:09:15,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:15,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:15,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 08:09:15,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2021-03-26 08:09:15,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105688381] [2021-03-26 08:09:15,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:09:15,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:15,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:09:15,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-26 08:09:15,287 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 299 [2021-03-26 08:09:15,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 411 transitions, 12869 flow. Second operand has 5 states, 5 states have (on average 184.2) internal successors, (921), 5 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:15,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:15,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 299 [2021-03-26 08:09:15,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:15,695 INFO L129 PetriNetUnfolder]: 346/1159 cut-off events. [2021-03-26 08:09:15,695 INFO L130 PetriNetUnfolder]: For 61264/61881 co-relation queries the response was YES. [2021-03-26 08:09:15,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12241 conditions, 1159 events. 346/1159 cut-off events. For 61264/61881 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 10505 event pairs, 0 based on Foata normal form. 228/1384 useless extension candidates. Maximal degree in co-relation 12158. Up to 377 conditions per place. [2021-03-26 08:09:15,709 INFO L132 encePairwiseOnDemand]: 280/299 looper letters, 215 selfloop transitions, 17 changer transitions 4/405 dead transitions. [2021-03-26 08:09:15,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 405 transitions, 12940 flow [2021-03-26 08:09:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:09:15,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:09:15,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1017 transitions. [2021-03-26 08:09:15,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6802675585284281 [2021-03-26 08:09:15,710 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1017 transitions. [2021-03-26 08:09:15,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1017 transitions. [2021-03-26 08:09:15,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:15,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1017 transitions. [2021-03-26 08:09:15,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 203.4) internal successors, (1017), 5 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:15,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:15,712 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:15,712 INFO L185 Difference]: Start difference. First operand has 240 places, 411 transitions, 12869 flow. Second operand 5 states and 1017 transitions. [2021-03-26 08:09:15,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 405 transitions, 12940 flow [2021-03-26 08:09:15,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 405 transitions, 12880 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 08:09:15,865 INFO L241 Difference]: Finished difference. Result has 242 places, 400 transitions, 12361 flow [2021-03-26 08:09:15,866 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=12309, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=12361, PETRI_PLACES=242, PETRI_TRANSITIONS=400} [2021-03-26 08:09:15,866 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 211 predicate places. [2021-03-26 08:09:15,866 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:15,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 400 transitions, 12361 flow [2021-03-26 08:09:15,867 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 400 transitions, 12361 flow [2021-03-26 08:09:15,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 400 transitions, 12361 flow [2021-03-26 08:09:16,002 INFO L129 PetriNetUnfolder]: 342/1141 cut-off events. [2021-03-26 08:09:16,002 INFO L130 PetriNetUnfolder]: For 37813/38054 co-relation queries the response was YES. [2021-03-26 08:09:16,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11836 conditions, 1141 events. 342/1141 cut-off events. For 37813/38054 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 10346 event pairs, 0 based on Foata normal form. 41/1177 useless extension candidates. Maximal degree in co-relation 11753. Up to 370 conditions per place. [2021-03-26 08:09:16,019 INFO L142 LiptonReduction]: Number of co-enabled transitions 1892 [2021-03-26 08:09:16,134 INFO L154 LiptonReduction]: Checked pairs total: 163 [2021-03-26 08:09:16,135 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 08:09:16,135 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 269 [2021-03-26 08:09:16,135 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 400 transitions, 12361 flow [2021-03-26 08:09:16,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 184.2) internal successors, (921), 5 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:16,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:16,135 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:16,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-03-26 08:09:16,350 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:16,350 INFO L82 PathProgramCache]: Analyzing trace with hash 439993945, now seen corresponding path program 1 times [2021-03-26 08:09:16,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:16,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223935542] [2021-03-26 08:09:16,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:16,361 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:16,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:16,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-26 08:09:16,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:16,377 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-03-26 08:09:16,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:16,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:16,401 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 08:09:16,401 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-26 08:09:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:16,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223935542] [2021-03-26 08:09:16,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502797588] [2021-03-26 08:09:16,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:16,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-26 08:09:16,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:16,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:16,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:16,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:16,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:16,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:16,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:16,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:16,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:09:16,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:09:16,521 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:09:16,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:09:16,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:09:16,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:16,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:16,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:16,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:16,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:16,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:16,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:16,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:16,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:16,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:16,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:16,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:16,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:16,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:16,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,576 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:09:16,577 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:09:16,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:16,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:16,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 08:09:16,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:16,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:16,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:09:16,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:16,598 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:09:16,599 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:09:16,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:16,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:16,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-26 08:09:16,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056203349] [2021-03-26 08:09:16,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-26 08:09:16,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:16,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-26 08:09:16,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-03-26 08:09:16,614 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 300 [2021-03-26 08:09:16,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 400 transitions, 12361 flow. Second operand has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:16,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:16,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 300 [2021-03-26 08:09:16,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:18,084 INFO L129 PetriNetUnfolder]: 359/1199 cut-off events. [2021-03-26 08:09:18,085 INFO L130 PetriNetUnfolder]: For 40492/40887 co-relation queries the response was YES. [2021-03-26 08:09:18,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13093 conditions, 1199 events. 359/1199 cut-off events. For 40492/40887 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 10949 event pairs, 0 based on Foata normal form. 53/1250 useless extension candidates. Maximal degree in co-relation 13008. Up to 461 conditions per place. [2021-03-26 08:09:18,097 INFO L132 encePairwiseOnDemand]: 198/300 looper letters, 217 selfloop transitions, 206 changer transitions 0/439 dead transitions. [2021-03-26 08:09:18,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 439 transitions, 14233 flow [2021-03-26 08:09:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-26 08:09:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-03-26 08:09:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2481 transitions. [2021-03-26 08:09:18,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28517241379310343 [2021-03-26 08:09:18,099 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2481 transitions. [2021-03-26 08:09:18,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2481 transitions. [2021-03-26 08:09:18,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:18,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2481 transitions. [2021-03-26 08:09:18,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 85.55172413793103) internal successors, (2481), 29 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:18,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 300.0) internal successors, (9000), 30 states have internal predecessors, (9000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:18,105 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 300.0) internal successors, (9000), 30 states have internal predecessors, (9000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:18,105 INFO L185 Difference]: Start difference. First operand has 242 places, 400 transitions, 12361 flow. Second operand 29 states and 2481 transitions. [2021-03-26 08:09:18,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 439 transitions, 14233 flow [2021-03-26 08:09:18,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 439 transitions, 14121 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-26 08:09:18,265 INFO L241 Difference]: Finished difference. Result has 270 places, 422 transitions, 13623 flow [2021-03-26 08:09:18,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=12259, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=13623, PETRI_PLACES=270, PETRI_TRANSITIONS=422} [2021-03-26 08:09:18,265 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 239 predicate places. [2021-03-26 08:09:18,265 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:18,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 422 transitions, 13623 flow [2021-03-26 08:09:18,266 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 422 transitions, 13623 flow [2021-03-26 08:09:18,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 422 transitions, 13623 flow [2021-03-26 08:09:18,414 INFO L129 PetriNetUnfolder]: 359/1199 cut-off events. [2021-03-26 08:09:18,414 INFO L130 PetriNetUnfolder]: For 42110/42394 co-relation queries the response was YES. [2021-03-26 08:09:18,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12791 conditions, 1199 events. 359/1199 cut-off events. For 42110/42394 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 10998 event pairs, 0 based on Foata normal form. 52/1246 useless extension candidates. Maximal degree in co-relation 12705. Up to 398 conditions per place. [2021-03-26 08:09:18,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 1990 [2021-03-26 08:09:18,683 INFO L154 LiptonReduction]: Checked pairs total: 261 [2021-03-26 08:09:18,683 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 08:09:18,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 418 [2021-03-26 08:09:18,684 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 422 transitions, 13661 flow [2021-03-26 08:09:18,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:18,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:18,684 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:18,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-03-26 08:09:18,898 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:18,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:18,898 INFO L82 PathProgramCache]: Analyzing trace with hash -2064088412, now seen corresponding path program 1 times [2021-03-26 08:09:18,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:18,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544798818] [2021-03-26 08:09:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:18,913 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:18,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:18,917 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 08:09:18,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:18,923 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 08:09:18,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:18,929 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 08:09:18,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:18,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 08:09:18,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:18,945 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:18,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:18,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544798818] [2021-03-26 08:09:18,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144427233] [2021-03-26 08:09:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:19,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-26 08:09:19,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:19,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:19,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:19,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:19,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:19,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,042 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:19,042 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:19,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:19,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:19,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:19,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:19,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 08:09:19,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:19,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 08:09:19,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:19,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 08:09:19,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:19,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:19,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 08:09:19,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:19,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:19,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:19,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-03-26 08:09:19,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003624233] [2021-03-26 08:09:19,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 08:09:19,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 08:09:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-03-26 08:09:19,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 304 [2021-03-26 08:09:19,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 422 transitions, 13661 flow. Second operand has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:19,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:19,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 304 [2021-03-26 08:09:19,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:20,512 INFO L129 PetriNetUnfolder]: 382/1270 cut-off events. [2021-03-26 08:09:20,512 INFO L130 PetriNetUnfolder]: For 49053/49498 co-relation queries the response was YES. [2021-03-26 08:09:20,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14556 conditions, 1270 events. 382/1270 cut-off events. For 49053/49498 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 11569 event pairs, 0 based on Foata normal form. 39/1307 useless extension candidates. Maximal degree in co-relation 14468. Up to 604 conditions per place. [2021-03-26 08:09:20,525 INFO L132 encePairwiseOnDemand]: 220/304 looper letters, 310 selfloop transitions, 107 changer transitions 0/433 dead transitions. [2021-03-26 08:09:20,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 433 transitions, 15002 flow [2021-03-26 08:09:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-26 08:09:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-26 08:09:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2067 transitions. [2021-03-26 08:09:20,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.309061004784689 [2021-03-26 08:09:20,527 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2067 transitions. [2021-03-26 08:09:20,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2067 transitions. [2021-03-26 08:09:20,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:20,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2067 transitions. [2021-03-26 08:09:20,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 93.95454545454545) internal successors, (2067), 22 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:20,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 304.0) internal successors, (6992), 23 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:20,532 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 304.0) internal successors, (6992), 23 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:20,532 INFO L185 Difference]: Start difference. First operand has 270 places, 422 transitions, 13661 flow. Second operand 22 states and 2067 transitions. [2021-03-26 08:09:20,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 433 transitions, 15002 flow [2021-03-26 08:09:20,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 433 transitions, 14531 flow, removed 130 selfloop flow, removed 20 redundant places. [2021-03-26 08:09:20,714 INFO L241 Difference]: Finished difference. Result has 275 places, 430 transitions, 13707 flow [2021-03-26 08:09:20,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=13190, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=13707, PETRI_PLACES=275, PETRI_TRANSITIONS=430} [2021-03-26 08:09:20,715 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 244 predicate places. [2021-03-26 08:09:20,715 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:20,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 430 transitions, 13707 flow [2021-03-26 08:09:20,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 430 transitions, 13707 flow [2021-03-26 08:09:20,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 275 places, 430 transitions, 13707 flow [2021-03-26 08:09:20,872 INFO L129 PetriNetUnfolder]: 380/1270 cut-off events. [2021-03-26 08:09:20,873 INFO L130 PetriNetUnfolder]: For 50437/50706 co-relation queries the response was YES. [2021-03-26 08:09:20,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13904 conditions, 1270 events. 380/1270 cut-off events. For 50437/50706 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 11727 event pairs, 5 based on Foata normal form. 43/1308 useless extension candidates. Maximal degree in co-relation 13813. Up to 426 conditions per place. [2021-03-26 08:09:20,892 INFO L142 LiptonReduction]: Number of co-enabled transitions 2032 [2021-03-26 08:09:21,417 INFO L154 LiptonReduction]: Checked pairs total: 1139 [2021-03-26 08:09:21,417 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 08:09:21,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 703 [2021-03-26 08:09:21,418 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 430 transitions, 13768 flow [2021-03-26 08:09:21,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:21,418 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:21,418 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:21,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-03-26 08:09:21,632 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:21,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1696197903, now seen corresponding path program 1 times [2021-03-26 08:09:21,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:21,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623131011] [2021-03-26 08:09:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:21,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:21,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:21,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:21,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:21,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:21,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:21,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:21,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:21,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:21,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623131011] [2021-03-26 08:09:21,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 08:09:21,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 08:09:21,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778433046] [2021-03-26 08:09:21,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:09:21,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:21,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:09:21,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 08:09:21,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 314 [2021-03-26 08:09:21,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 430 transitions, 13768 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:21,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:21,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 314 [2021-03-26 08:09:21,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:22,107 INFO L129 PetriNetUnfolder]: 357/1211 cut-off events. [2021-03-26 08:09:22,107 INFO L130 PetriNetUnfolder]: For 56745/57422 co-relation queries the response was YES. [2021-03-26 08:09:22,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14338 conditions, 1211 events. 357/1211 cut-off events. For 56745/57422 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 11071 event pairs, 4 based on Foata normal form. 196/1405 useless extension candidates. Maximal degree in co-relation 14245. Up to 416 conditions per place. [2021-03-26 08:09:22,121 INFO L132 encePairwiseOnDemand]: 283/314 looper letters, 140 selfloop transitions, 34 changer transitions 0/434 dead transitions. [2021-03-26 08:09:22,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 434 transitions, 14063 flow [2021-03-26 08:09:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:09:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:09:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1071 transitions. [2021-03-26 08:09:22,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6821656050955414 [2021-03-26 08:09:22,123 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1071 transitions. [2021-03-26 08:09:22,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1071 transitions. [2021-03-26 08:09:22,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:22,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1071 transitions. [2021-03-26 08:09:22,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:22,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 314.0) internal successors, (1884), 6 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:22,125 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 314.0) internal successors, (1884), 6 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:22,125 INFO L185 Difference]: Start difference. First operand has 275 places, 430 transitions, 13768 flow. Second operand 5 states and 1071 transitions. [2021-03-26 08:09:22,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 434 transitions, 14063 flow [2021-03-26 08:09:22,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 434 transitions, 13451 flow, removed 201 selfloop flow, removed 18 redundant places. [2021-03-26 08:09:22,326 INFO L241 Difference]: Finished difference. Result has 264 places, 432 transitions, 13276 flow [2021-03-26 08:09:22,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=12727, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=13276, PETRI_PLACES=264, PETRI_TRANSITIONS=432} [2021-03-26 08:09:22,326 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 233 predicate places. [2021-03-26 08:09:22,326 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:22,327 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 432 transitions, 13276 flow [2021-03-26 08:09:22,327 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 432 transitions, 13276 flow [2021-03-26 08:09:22,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 432 transitions, 13276 flow [2021-03-26 08:09:22,513 INFO L129 PetriNetUnfolder]: 358/1219 cut-off events. [2021-03-26 08:09:22,513 INFO L130 PetriNetUnfolder]: For 49497/49774 co-relation queries the response was YES. [2021-03-26 08:09:22,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13617 conditions, 1219 events. 358/1219 cut-off events. For 49497/49774 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 11193 event pairs, 6 based on Foata normal form. 40/1257 useless extension candidates. Maximal degree in co-relation 13524. Up to 359 conditions per place. [2021-03-26 08:09:22,532 INFO L142 LiptonReduction]: Number of co-enabled transitions 2030 [2021-03-26 08:09:22,865 INFO L154 LiptonReduction]: Checked pairs total: 1403 [2021-03-26 08:09:22,865 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 08:09:22,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 539 [2021-03-26 08:09:22,866 INFO L480 AbstractCegarLoop]: Abstraction has has 264 places, 432 transitions, 13306 flow [2021-03-26 08:09:22,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:22,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:22,866 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:22,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-26 08:09:22,866 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:22,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:22,866 INFO L82 PathProgramCache]: Analyzing trace with hash 309765496, now seen corresponding path program 1 times [2021-03-26 08:09:22,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:22,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249642224] [2021-03-26 08:09:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:22,882 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:22,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,900 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-26 08:09:22,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:22,906 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-26 08:09:22,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:09:22,913 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:09:22,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:22,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249642224] [2021-03-26 08:09:22,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673609551] [2021-03-26 08:09:22,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:22,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-26 08:09:22,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:22,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:22,997 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-26 08:09:22,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:09:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 08:09:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:23,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:23,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:23,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:23,010 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-26 08:09:23,011 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-26 08:09:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:23,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:23,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 08:09:23,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376586873] [2021-03-26 08:09:23,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 08:09:23,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:23,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 08:09:23,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-03-26 08:09:23,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 322 [2021-03-26 08:09:23,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 432 transitions, 13306 flow. Second operand has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:23,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:23,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 322 [2021-03-26 08:09:23,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:23,900 INFO L129 PetriNetUnfolder]: 358/1218 cut-off events. [2021-03-26 08:09:23,901 INFO L130 PetriNetUnfolder]: For 50349/50860 co-relation queries the response was YES. [2021-03-26 08:09:23,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14373 conditions, 1218 events. 358/1218 cut-off events. For 50349/50860 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 11074 event pairs, 3 based on Foata normal form. 41/1257 useless extension candidates. Maximal degree in co-relation 14278. Up to 630 conditions per place. [2021-03-26 08:09:23,915 INFO L132 encePairwiseOnDemand]: 287/322 looper letters, 367 selfloop transitions, 57 changer transitions 0/441 dead transitions. [2021-03-26 08:09:23,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 441 transitions, 14348 flow [2021-03-26 08:09:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 08:09:23,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 08:09:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 732 transitions. [2021-03-26 08:09:23,917 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32475598935226263 [2021-03-26 08:09:23,917 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 732 transitions. [2021-03-26 08:09:23,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 732 transitions. [2021-03-26 08:09:23,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:23,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 732 transitions. [2021-03-26 08:09:23,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:23,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 322.0) internal successors, (2576), 8 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:23,919 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 322.0) internal successors, (2576), 8 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:23,919 INFO L185 Difference]: Start difference. First operand has 264 places, 432 transitions, 13306 flow. Second operand 7 states and 732 transitions. [2021-03-26 08:09:23,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 441 transitions, 14348 flow [2021-03-26 08:09:24,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 441 transitions, 14341 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 08:09:24,134 INFO L241 Difference]: Finished difference. Result has 270 places, 433 transitions, 13530 flow [2021-03-26 08:09:24,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=322, PETRI_DIFFERENCE_MINUEND_FLOW=13278, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13530, PETRI_PLACES=270, PETRI_TRANSITIONS=433} [2021-03-26 08:09:24,134 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 239 predicate places. [2021-03-26 08:09:24,135 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:24,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 433 transitions, 13530 flow [2021-03-26 08:09:24,135 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 433 transitions, 13530 flow [2021-03-26 08:09:24,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 433 transitions, 13530 flow [2021-03-26 08:09:24,294 INFO L129 PetriNetUnfolder]: 358/1227 cut-off events. [2021-03-26 08:09:24,294 INFO L130 PetriNetUnfolder]: For 51339/51615 co-relation queries the response was YES. [2021-03-26 08:09:24,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13863 conditions, 1227 events. 358/1227 cut-off events. For 51339/51615 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 11298 event pairs, 5 based on Foata normal form. 20/1245 useless extension candidates. Maximal degree in co-relation 13767. Up to 361 conditions per place. [2021-03-26 08:09:24,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 1992 [2021-03-26 08:09:24,505 INFO L154 LiptonReduction]: Checked pairs total: 427 [2021-03-26 08:09:24,505 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 08:09:24,505 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 370 [2021-03-26 08:09:24,506 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 433 transitions, 13534 flow [2021-03-26 08:09:24,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:24,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:24,506 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:24,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-03-26 08:09:24,720 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash -582413387, now seen corresponding path program 1 times [2021-03-26 08:09:24,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:24,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720747018] [2021-03-26 08:09:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:24,730 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:24,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:24,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:24,746 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 08:09:24,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:24,754 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 08:09:24,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:24,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720747018] [2021-03-26 08:09:24,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663288075] [2021-03-26 08:09:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:24,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:24,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:24,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:24,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:24,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:24,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:24,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:24,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:24,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,840 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-26 08:09:24,840 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-26 08:09:24,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 08:09:24,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:24,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:24,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:24,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:24,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 08:09:24,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 08:09:24,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 08:09:24,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:24,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 08:09:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 08:09:24,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:24,872 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-03-26 08:09:24,873 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 08:09:24,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 08:09:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:24,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 08:09:24,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 08:09:24,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774520111] [2021-03-26 08:09:24,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 08:09:24,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:24,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 08:09:24,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-03-26 08:09:24,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 324 [2021-03-26 08:09:24,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 433 transitions, 13534 flow. Second operand has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:24,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:24,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 324 [2021-03-26 08:09:24,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:26,414 INFO L129 PetriNetUnfolder]: 378/1295 cut-off events. [2021-03-26 08:09:26,415 INFO L130 PetriNetUnfolder]: For 58030/58568 co-relation queries the response was YES. [2021-03-26 08:09:26,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15653 conditions, 1295 events. 378/1295 cut-off events. For 58030/58568 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 12035 event pairs, 3 based on Foata normal form. 50/1343 useless extension candidates. Maximal degree in co-relation 15555. Up to 508 conditions per place. [2021-03-26 08:09:26,430 INFO L132 encePairwiseOnDemand]: 158/324 looper letters, 154 selfloop transitions, 290 changer transitions 0/461 dead transitions. [2021-03-26 08:09:26,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 461 transitions, 15367 flow [2021-03-26 08:09:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 08:09:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 08:09:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1635 transitions. [2021-03-26 08:09:26,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31539351851851855 [2021-03-26 08:09:26,432 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1635 transitions. [2021-03-26 08:09:26,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1635 transitions. [2021-03-26 08:09:26,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:26,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1635 transitions. [2021-03-26 08:09:26,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 102.1875) internal successors, (1635), 16 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:26,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 324.0) internal successors, (5508), 17 states have internal predecessors, (5508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:26,436 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 324.0) internal successors, (5508), 17 states have internal predecessors, (5508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:26,436 INFO L185 Difference]: Start difference. First operand has 270 places, 433 transitions, 13534 flow. Second operand 16 states and 1635 transitions. [2021-03-26 08:09:26,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 461 transitions, 15367 flow [2021-03-26 08:09:26,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 461 transitions, 15296 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 08:09:26,660 INFO L241 Difference]: Finished difference. Result has 283 places, 459 transitions, 15234 flow [2021-03-26 08:09:26,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=13463, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=15234, PETRI_PLACES=283, PETRI_TRANSITIONS=459} [2021-03-26 08:09:26,660 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 252 predicate places. [2021-03-26 08:09:26,660 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:26,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 459 transitions, 15234 flow [2021-03-26 08:09:26,660 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 459 transitions, 15234 flow [2021-03-26 08:09:26,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 283 places, 459 transitions, 15234 flow [2021-03-26 08:09:26,882 INFO L129 PetriNetUnfolder]: 377/1297 cut-off events. [2021-03-26 08:09:26,883 INFO L130 PetriNetUnfolder]: For 60495/60812 co-relation queries the response was YES. [2021-03-26 08:09:26,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15593 conditions, 1297 events. 377/1297 cut-off events. For 60495/60812 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 12139 event pairs, 4 based on Foata normal form. 27/1322 useless extension candidates. Maximal degree in co-relation 15494. Up to 397 conditions per place. [2021-03-26 08:09:26,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 2084 [2021-03-26 08:09:27,200 INFO L154 LiptonReduction]: Checked pairs total: 1141 [2021-03-26 08:09:27,201 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 08:09:27,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 541 [2021-03-26 08:09:27,202 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 459 transitions, 15250 flow [2021-03-26 08:09:27,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:27,202 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:27,202 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:27,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:27,416 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:27,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:27,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1026653082, now seen corresponding path program 1 times [2021-03-26 08:09:27,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:27,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30573553] [2021-03-26 08:09:27,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:27,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:27,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30573553] [2021-03-26 08:09:27,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582329498] [2021-03-26 08:09:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:27,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 08:09:27,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:27,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:27,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:27,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:27,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:27,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:27,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:27,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:27,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:27,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:27,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:27,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:27,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 08:09:27,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 08:09:27,503 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-26 08:09:27,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:27,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 08:09:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:27,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 08:09:27,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-03-26 08:09:27,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639593894] [2021-03-26 08:09:27,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 08:09:27,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 08:09:27,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 08:09:27,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 08:09:27,506 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 329 [2021-03-26 08:09:27,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 459 transitions, 15250 flow. Second operand has 5 states, 5 states have (on average 200.0) internal successors, (1000), 5 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:27,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 08:09:27,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 329 [2021-03-26 08:09:27,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 08:09:28,061 INFO L129 PetriNetUnfolder]: 379/1311 cut-off events. [2021-03-26 08:09:28,061 INFO L130 PetriNetUnfolder]: For 87170/88046 co-relation queries the response was YES. [2021-03-26 08:09:28,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16412 conditions, 1311 events. 379/1311 cut-off events. For 87170/88046 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 12288 event pairs, 3 based on Foata normal form. 247/1556 useless extension candidates. Maximal degree in co-relation 16312. Up to 406 conditions per place. [2021-03-26 08:09:28,079 INFO L132 encePairwiseOnDemand]: 314/329 looper letters, 238 selfloop transitions, 17 changer transitions 4/464 dead transitions. [2021-03-26 08:09:28,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 464 transitions, 15909 flow [2021-03-26 08:09:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 08:09:28,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 08:09:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1109 transitions. [2021-03-26 08:09:28,080 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6741641337386018 [2021-03-26 08:09:28,080 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1109 transitions. [2021-03-26 08:09:28,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1109 transitions. [2021-03-26 08:09:28,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 08:09:28,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1109 transitions. [2021-03-26 08:09:28,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 221.8) internal successors, (1109), 5 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:28,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:28,082 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:28,082 INFO L185 Difference]: Start difference. First operand has 283 places, 459 transitions, 15250 flow. Second operand 5 states and 1109 transitions. [2021-03-26 08:09:28,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 464 transitions, 15909 flow [2021-03-26 08:09:28,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 464 transitions, 15739 flow, removed 37 selfloop flow, removed 10 redundant places. [2021-03-26 08:09:28,340 INFO L241 Difference]: Finished difference. Result has 278 places, 455 transitions, 15012 flow [2021-03-26 08:09:28,340 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=15017, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=15012, PETRI_PLACES=278, PETRI_TRANSITIONS=455} [2021-03-26 08:09:28,340 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 247 predicate places. [2021-03-26 08:09:28,340 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 08:09:28,340 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 455 transitions, 15012 flow [2021-03-26 08:09:28,341 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 455 transitions, 15012 flow [2021-03-26 08:09:28,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 455 transitions, 15012 flow [2021-03-26 08:09:28,542 INFO L129 PetriNetUnfolder]: 379/1304 cut-off events. [2021-03-26 08:09:28,542 INFO L130 PetriNetUnfolder]: For 62458/62793 co-relation queries the response was YES. [2021-03-26 08:09:28,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15927 conditions, 1304 events. 379/1304 cut-off events. For 62458/62793 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 12239 event pairs, 5 based on Foata normal form. 22/1325 useless extension candidates. Maximal degree in co-relation 15830. Up to 403 conditions per place. [2021-03-26 08:09:28,566 INFO L142 LiptonReduction]: Number of co-enabled transitions 2082 [2021-03-26 08:09:28,899 INFO L154 LiptonReduction]: Checked pairs total: 339 [2021-03-26 08:09:28,900 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 08:09:28,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 560 [2021-03-26 08:09:28,900 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 455 transitions, 15022 flow [2021-03-26 08:09:28,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 200.0) internal successors, (1000), 5 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 08:09:28,900 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 08:09:28,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 08:09:29,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:29,118 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 08:09:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 08:09:29,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2063373105, now seen corresponding path program 1 times [2021-03-26 08:09:29,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 08:09:29,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670594112] [2021-03-26 08:09:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 08:09:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:29,133 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-03-26 08:09:29,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,138 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-26 08:09:29,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 08:09:29,144 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-03-26 08:09:29,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:29,152 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-26 08:09:29,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:29,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 08:09:29,168 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 08:09:29,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 08:09:29,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670594112] [2021-03-26 08:09:29,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559628286] [2021-03-26 08:09:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 08:09:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 08:09:29,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 08:09:29,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 08:09:29,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 08:09:29,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:29,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:29,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 08:09:29,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:09:29,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 08:09:29,326 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 08:09:29,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:09:29,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 08:09:29,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:29,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:29,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:29,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 08:09:29,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:29,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:29,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 08:09:29,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 08:09:29,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,373 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-26 08:09:29,374 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 08:09:29,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 08:09:29,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:09:29,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:29,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 08:09:29,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,395 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-26 08:09:29,395 INFO L142 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size [2021-03-26 08:09:29,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 08:09:29,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 08:09:29,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 08:09:29,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 08:09:29,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 08:09:29,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,428 INFO L147 QuantifierPusher]: treesize reduction -4, result has 109.1 percent of original size 48 [2021-03-26 08:09:29,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,428 INFO L142 QuantifierPusher]: treesize reduction -3, result has 107.1 percent of original size [2021-03-26 08:09:29,429 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size 40 [2021-03-26 08:09:29,474 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:29,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,499 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-03-26 08:09:29,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,505 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.4 percent of original size 39 [2021-03-26 08:09:29,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,506 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size [2021-03-26 08:09:29,507 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.3 percent of original size 31 [2021-03-26 08:09:29,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,509 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size 28 [2021-03-26 08:09:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,510 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.0 percent of original size [2021-03-26 08:09:29,510 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.8 percent of original size 27 [2021-03-26 08:09:29,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,512 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.9 percent of original size [2021-03-26 08:09:29,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:29,552 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:29,653 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:29,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,668 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-26 08:09:29,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,669 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-26 08:09:29,669 INFO L147 QuantifierPusher]: treesize reduction 21, result has 50.0 percent of original size 21 [2021-03-26 08:09:29,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,671 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-03-26 08:09:29,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,673 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size 35 [2021-03-26 08:09:29,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,675 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size 35 [2021-03-26 08:09:29,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 08:09:29,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 08:09:29,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 08:09:29,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 08:09:29,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,684 INFO L147 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size 23 [2021-03-26 08:09:29,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,684 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-26 08:09:29,686 INFO L147 QuantifierPusher]: treesize reduction 20, result has 50.0 percent of original size 20 [2021-03-26 08:09:29,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,686 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-26 08:09:29,687 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-03-26 08:09:29,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,688 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size 74 [2021-03-26 08:09:29,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 08:09:29,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 08:09:29,756 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:29,911 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:30,139 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:30,551 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:31,188 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:32,089 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:33,250 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:34,712 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:36,594 INFO L842 QuantifierPusher]: Run 90 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:38,671 INFO L842 QuantifierPusher]: Run 100 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:40,375 INFO L842 QuantifierPusher]: Run 110 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:42,377 INFO L842 QuantifierPusher]: Run 120 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:44,628 INFO L842 QuantifierPusher]: Run 130 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:47,486 INFO L842 QuantifierPusher]: Run 140 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:50,674 INFO L842 QuantifierPusher]: Run 150 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:54,372 INFO L842 QuantifierPusher]: Run 160 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:09:58,500 INFO L842 QuantifierPusher]: Run 170 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:10:03,447 INFO L842 QuantifierPusher]: Run 180 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-26 08:10:09,045 INFO L842 QuantifierPusher]: Run 190 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug.