/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 12:55:23,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 12:55:23,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 12:55:23,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-30 12:55:23,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-30 12:55:23,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-30 12:55:23,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-30 12:55:23,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-30 12:55:23,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-30 12:55:23,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-30 12:55:23,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-30 12:55:23,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-30 12:55:23,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 12:55:23,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 12:55:23,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 12:55:23,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 12:55:23,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 12:55:23,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 12:55:23,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 12:55:23,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 12:55:23,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 12:55:23,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 12:55:23,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 12:55:23,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 12:55:23,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-30 12:55:23,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-30 12:55:23,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-30 12:55:23,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-30 12:55:23,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-30 12:55:23,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 12:55:23,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 12:55:23,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 12:55:23,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 12:55:23,854 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 12:55:23,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 12:55:23,854 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 12:55:23,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 12:55:23,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 12:55:23,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 12:55:23,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 12:55:23,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 12:55:23,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 12:55:23,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 12:55:23,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 12:55:23,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 12:55:23,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 12:55:23,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 12:55:23,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 12:55:23,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 12:55:23,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 12:55:23,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 12:55:23,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-30 12:55:23,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 12:55:24,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 12:55:24,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 12:55:24,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 12:55:24,165 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 12:55:24,166 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 12:55:24,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl [2021-06-30 12:55:24,167 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl' [2021-06-30 12:55:24,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 12:55:24,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 12:55:24,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 12:55:24,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 12:55:24,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 12:55:24,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 12:55:24,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 12:55:24,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 12:55:24,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 12:55:24,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... [2021-06-30 12:55:24,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 12:55:24,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 12:55:24,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 12:55:24,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 12:55:24,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 12:55:24,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 12:55:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 12:55:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 12:55:24,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 12:55:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 12:55:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 12:55:24,304 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 12:55:24,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 12:55:24,432 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 12:55:24,433 INFO L202 PluginConnector]: Adding new model add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 12:55:24 BoogieIcfgContainer [2021-06-30 12:55:24,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 12:55:24,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 12:55:24,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 12:55:24,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 12:55:24,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:55:24" (1/2) ... [2021-06-30 12:55:24,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a105717 and model type add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 12:55:24, skipping insertion in model container [2021-06-30 12:55:24,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 12:55:24" (2/2) ... [2021-06-30 12:55:24,440 INFO L111 eAbstractionObserver]: Analyzing ICFG add-sub04.bpl [2021-06-30 12:55:24,449 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 12:55:24,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 12:55:24,450 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 12:55:24,473 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,474 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,474 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,474 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,475 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,475 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,475 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,476 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,476 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,476 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,476 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,477 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,477 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,477 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,478 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,478 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,478 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,478 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,479 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,479 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,479 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,479 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,479 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,480 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,482 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,485 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,488 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,490 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 12:55:24,499 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-30 12:55:24,521 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-30 12:55:24,561 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 12:55:24,561 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 12:55:24,561 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 12:55:24,561 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 12:55:24,562 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 12:55:24,562 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 12:55:24,562 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 12:55:24,562 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 12:55:24,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 96 flow [2021-06-30 12:55:24,633 INFO L129 PetriNetUnfolder]: 4/28 cut-off events. [2021-06-30 12:55:24,633 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-30 12:55:24,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 28 events. 4/28 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 54 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-06-30 12:55:24,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 32 transitions, 96 flow [2021-06-30 12:55:24,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 26 transitions, 76 flow [2021-06-30 12:55:24,668 INFO L129 PetriNetUnfolder]: 4/25 cut-off events. [2021-06-30 12:55:24,669 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-30 12:55:24,669 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:24,670 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:24,670 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:24,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:24,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1203214040, now seen corresponding path program 1 times [2021-06-30 12:55:24,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:24,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112241950] [2021-06-30 12:55:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:24,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:24,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:55:24,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:24,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112241950] [2021-06-30 12:55:24,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112241950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:24,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:24,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-30 12:55:24,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577519164] [2021-06-30 12:55:24,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-30 12:55:24,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:24,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-30 12:55:24,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-30 12:55:24,921 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 32 [2021-06-30 12:55:24,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:24,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:24,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 32 [2021-06-30 12:55:24,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:25,004 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([45] L27-->L28: Formula: (= v_x_6 (+ v_x_7 v_ThreadThread1of1ForFork3_i_3)) InVars {x=v_x_7, ThreadThread1of1ForFork3_i=v_ThreadThread1of1ForFork3_i_3} OutVars{x=v_x_6, ThreadThread1of1ForFork3_i=v_ThreadThread1of1ForFork3_i_3} AuxVars[] AssignedVars[x][23], [32#L25true, 19#L28true, ThreadThread1of1ForFork1InUse, ThreadThread1of1ForFork0InUse, ThreadThread1of1ForFork2InUse, 25#L25true, ThreadThread1of1ForFork3InUse, 44#true, 30#L25true, 14#L12true]) [2021-06-30 12:55:25,006 INFO L384 tUnfolder$Statistics]: this new event has 10 ancestors and is cut-off event [2021-06-30 12:55:25,006 INFO L387 tUnfolder$Statistics]: existing Event has 10 ancestors and is cut-off event [2021-06-30 12:55:25,007 INFO L387 tUnfolder$Statistics]: existing Event has 10 ancestors and is cut-off event [2021-06-30 12:55:25,007 INFO L387 tUnfolder$Statistics]: existing Event has 10 ancestors and is cut-off event [2021-06-30 12:55:25,028 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([45] L27-->L28: Formula: (= v_x_6 (+ v_x_7 v_ThreadThread1of1ForFork3_i_3)) InVars {x=v_x_7, ThreadThread1of1ForFork3_i=v_ThreadThread1of1ForFork3_i_3} OutVars{x=v_x_6, ThreadThread1of1ForFork3_i=v_ThreadThread1of1ForFork3_i_3} AuxVars[] AssignedVars[x][23], [32#L25true, 19#L28true, ThreadThread1of1ForFork1InUse, 23#L28true, ThreadThread1of1ForFork0InUse, ThreadThread1of1ForFork2InUse, 25#L25true, ThreadThread1of1ForFork3InUse, 44#true, 14#L12true]) [2021-06-30 12:55:25,028 INFO L384 tUnfolder$Statistics]: this new event has 12 ancestors and is cut-off event [2021-06-30 12:55:25,028 INFO L387 tUnfolder$Statistics]: existing Event has 12 ancestors and is cut-off event [2021-06-30 12:55:25,028 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-06-30 12:55:25,028 INFO L387 tUnfolder$Statistics]: existing Event has 12 ancestors and is cut-off event [2021-06-30 12:55:25,051 INFO L129 PetriNetUnfolder]: 97/179 cut-off events. [2021-06-30 12:55:25,051 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-06-30 12:55:25,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 179 events. 97/179 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 615 event pairs, 13 based on Foata normal form. 1/156 useless extension candidates. Maximal degree in co-relation 302. Up to 126 conditions per place. [2021-06-30 12:55:25,057 INFO L132 encePairwiseOnDemand]: 26/32 looper letters, 9 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-06-30 12:55:25,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 112 flow [2021-06-30 12:55:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-30 12:55:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-30 12:55:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2021-06-30 12:55:25,074 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8125 [2021-06-30 12:55:25,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 78 transitions. [2021-06-30 12:55:25,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 78 transitions. [2021-06-30 12:55:25,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:25,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 78 transitions. [2021-06-30 12:55:25,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,087 INFO L185 Difference]: Start difference. First operand has 35 places, 26 transitions, 76 flow. Second operand 3 states and 78 transitions. [2021-06-30 12:55:25,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 112 flow [2021-06-30 12:55:25,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-06-30 12:55:25,095 INFO L241 Difference]: Finished difference. Result has 30 places, 30 transitions, 93 flow [2021-06-30 12:55:25,097 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2021-06-30 12:55:25,097 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2021-06-30 12:55:25,097 INFO L482 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 93 flow [2021-06-30 12:55:25,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,098 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:25,099 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:25,099 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-30 12:55:25,100 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:25,101 INFO L82 PathProgramCache]: Analyzing trace with hash -995544800, now seen corresponding path program 1 times [2021-06-30 12:55:25,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:25,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436954667] [2021-06-30 12:55:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:25,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,206 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:25,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:25,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:25,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436954667] [2021-06-30 12:55:25,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436954667] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:25,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:25,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 12:55:25,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876033063] [2021-06-30 12:55:25,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 12:55:25,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:25,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 12:55:25,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:55:25,224 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 32 [2021-06-30 12:55:25,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 30 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:25,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 32 [2021-06-30 12:55:25,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:25,309 INFO L129 PetriNetUnfolder]: 144/257 cut-off events. [2021-06-30 12:55:25,309 INFO L130 PetriNetUnfolder]: For 75/115 co-relation queries the response was YES. [2021-06-30 12:55:25,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 257 events. 144/257 cut-off events. For 75/115 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 962 event pairs, 7 based on Foata normal form. 6/231 useless extension candidates. Maximal degree in co-relation 539. Up to 185 conditions per place. [2021-06-30 12:55:25,313 INFO L132 encePairwiseOnDemand]: 25/32 looper letters, 12 selfloop transitions, 13 changer transitions 0/39 dead transitions. [2021-06-30 12:55:25,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 175 flow [2021-06-30 12:55:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 12:55:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-30 12:55:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2021-06-30 12:55:25,315 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.765625 [2021-06-30 12:55:25,315 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 98 transitions. [2021-06-30 12:55:25,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 98 transitions. [2021-06-30 12:55:25,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:25,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 98 transitions. [2021-06-30 12:55:25,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,317 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,318 INFO L185 Difference]: Start difference. First operand has 30 places, 30 transitions, 93 flow. Second operand 4 states and 98 transitions. [2021-06-30 12:55:25,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 175 flow [2021-06-30 12:55:25,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:25,320 INFO L241 Difference]: Finished difference. Result has 34 places, 38 transitions, 172 flow [2021-06-30 12:55:25,321 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=34, PETRI_TRANSITIONS=38} [2021-06-30 12:55:25,321 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2021-06-30 12:55:25,321 INFO L482 AbstractCegarLoop]: Abstraction has has 34 places, 38 transitions, 172 flow [2021-06-30 12:55:25,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,322 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:25,322 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:25,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-30 12:55:25,322 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:25,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:25,323 INFO L82 PathProgramCache]: Analyzing trace with hash -869200312, now seen corresponding path program 1 times [2021-06-30 12:55:25,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:25,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075396113] [2021-06-30 12:55:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:25,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,365 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:25,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:25,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:25,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075396113] [2021-06-30 12:55:25,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075396113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:25,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:25,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 12:55:25,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318794994] [2021-06-30 12:55:25,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 12:55:25,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:25,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 12:55:25,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:55:25,372 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 32 [2021-06-30 12:55:25,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 38 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:25,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 32 [2021-06-30 12:55:25,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:25,432 INFO L129 PetriNetUnfolder]: 159/285 cut-off events. [2021-06-30 12:55:25,432 INFO L130 PetriNetUnfolder]: For 282/372 co-relation queries the response was YES. [2021-06-30 12:55:25,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 285 events. 159/285 cut-off events. For 282/372 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1102 event pairs, 3 based on Foata normal form. 16/271 useless extension candidates. Maximal degree in co-relation 738. Up to 206 conditions per place. [2021-06-30 12:55:25,436 INFO L132 encePairwiseOnDemand]: 25/32 looper letters, 21 selfloop transitions, 13 changer transitions 0/48 dead transitions. [2021-06-30 12:55:25,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 289 flow [2021-06-30 12:55:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 12:55:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-30 12:55:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2021-06-30 12:55:25,441 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7734375 [2021-06-30 12:55:25,441 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:25,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,443 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,443 INFO L185 Difference]: Start difference. First operand has 34 places, 38 transitions, 172 flow. Second operand 4 states and 99 transitions. [2021-06-30 12:55:25,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 289 flow [2021-06-30 12:55:25,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 283 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:25,447 INFO L241 Difference]: Finished difference. Result has 39 places, 46 transitions, 264 flow [2021-06-30 12:55:25,447 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=39, PETRI_TRANSITIONS=46} [2021-06-30 12:55:25,448 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2021-06-30 12:55:25,448 INFO L482 AbstractCegarLoop]: Abstraction has has 39 places, 46 transitions, 264 flow [2021-06-30 12:55:25,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,448 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:25,448 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:25,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-30 12:55:25,448 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:25,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:25,449 INFO L82 PathProgramCache]: Analyzing trace with hash -226019628, now seen corresponding path program 1 times [2021-06-30 12:55:25,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:25,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537921251] [2021-06-30 12:55:25,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:25,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:25,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:25,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:25,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:25,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537921251] [2021-06-30 12:55:25,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537921251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:25,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:25,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 12:55:25,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550942882] [2021-06-30 12:55:25,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 12:55:25,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:25,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 12:55:25,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:55:25,523 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 32 [2021-06-30 12:55:25,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 46 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:25,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 32 [2021-06-30 12:55:25,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:25,619 INFO L129 PetriNetUnfolder]: 167/299 cut-off events. [2021-06-30 12:55:25,619 INFO L130 PetriNetUnfolder]: For 511/554 co-relation queries the response was YES. [2021-06-30 12:55:25,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 299 events. 167/299 cut-off events. For 511/554 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1168 event pairs, 4 based on Foata normal form. 15/287 useless extension candidates. Maximal degree in co-relation 838. Up to 219 conditions per place. [2021-06-30 12:55:25,623 INFO L132 encePairwiseOnDemand]: 25/32 looper letters, 29 selfloop transitions, 13 changer transitions 0/56 dead transitions. [2021-06-30 12:55:25,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 56 transitions, 411 flow [2021-06-30 12:55:25,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 12:55:25,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-30 12:55:25,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2021-06-30 12:55:25,625 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7734375 [2021-06-30 12:55:25,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:25,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,627 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,628 INFO L185 Difference]: Start difference. First operand has 39 places, 46 transitions, 264 flow. Second operand 4 states and 99 transitions. [2021-06-30 12:55:25,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 56 transitions, 411 flow [2021-06-30 12:55:25,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 399 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:25,633 INFO L241 Difference]: Finished difference. Result has 44 places, 54 transitions, 364 flow [2021-06-30 12:55:25,633 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=44, PETRI_TRANSITIONS=54} [2021-06-30 12:55:25,633 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2021-06-30 12:55:25,633 INFO L482 AbstractCegarLoop]: Abstraction has has 44 places, 54 transitions, 364 flow [2021-06-30 12:55:25,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,634 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:25,634 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:25,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-30 12:55:25,634 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:25,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:25,635 INFO L82 PathProgramCache]: Analyzing trace with hash -411340998, now seen corresponding path program 1 times [2021-06-30 12:55:25,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:25,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264157606] [2021-06-30 12:55:25,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:25,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,671 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:25,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:25,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:25,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:25,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264157606] [2021-06-30 12:55:25,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264157606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:25,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:25,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 12:55:25,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438663085] [2021-06-30 12:55:25,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 12:55:25,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:25,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 12:55:25,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:55:25,678 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 32 [2021-06-30 12:55:25,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 54 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:25,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 32 [2021-06-30 12:55:25,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:25,736 INFO L129 PetriNetUnfolder]: 181/316 cut-off events. [2021-06-30 12:55:25,736 INFO L130 PetriNetUnfolder]: For 825/845 co-relation queries the response was YES. [2021-06-30 12:55:25,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 316 events. 181/316 cut-off events. For 825/845 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1210 event pairs, 1 based on Foata normal form. 12/305 useless extension candidates. Maximal degree in co-relation 888. Up to 236 conditions per place. [2021-06-30 12:55:25,741 INFO L132 encePairwiseOnDemand]: 25/32 looper letters, 37 selfloop transitions, 13 changer transitions 0/64 dead transitions. [2021-06-30 12:55:25,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 64 transitions, 541 flow [2021-06-30 12:55:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 12:55:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-30 12:55:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2021-06-30 12:55:25,753 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7734375 [2021-06-30 12:55:25,753 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:25,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 99 transitions. [2021-06-30 12:55:25,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,755 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,755 INFO L185 Difference]: Start difference. First operand has 44 places, 54 transitions, 364 flow. Second operand 4 states and 99 transitions. [2021-06-30 12:55:25,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 64 transitions, 541 flow [2021-06-30 12:55:25,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 64 transitions, 523 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:25,760 INFO L241 Difference]: Finished difference. Result has 49 places, 62 transitions, 472 flow [2021-06-30 12:55:25,760 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=472, PETRI_PLACES=49, PETRI_TRANSITIONS=62} [2021-06-30 12:55:25,760 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2021-06-30 12:55:25,760 INFO L482 AbstractCegarLoop]: Abstraction has has 49 places, 62 transitions, 472 flow [2021-06-30 12:55:25,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,761 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:25,761 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:25,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-30 12:55:25,761 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash 732883736, now seen corresponding path program 1 times [2021-06-30 12:55:25,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:25,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942385056] [2021-06-30 12:55:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:25,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,808 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:25,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:25,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:25,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942385056] [2021-06-30 12:55:25,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942385056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:25,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:25,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:25,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100746369] [2021-06-30 12:55:25,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:25,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:25,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:25,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:25,814 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:25,814 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 62 transitions, 472 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,814 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:25,814 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:25,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:25,899 INFO L129 PetriNetUnfolder]: 317/538 cut-off events. [2021-06-30 12:55:25,899 INFO L130 PetriNetUnfolder]: For 2529/2901 co-relation queries the response was YES. [2021-06-30 12:55:25,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 538 events. 317/538 cut-off events. For 2529/2901 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2308 event pairs, 17 based on Foata normal form. 52/542 useless extension candidates. Maximal degree in co-relation 2156. Up to 370 conditions per place. [2021-06-30 12:55:25,908 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 34 selfloop transitions, 33 changer transitions 0/79 dead transitions. [2021-06-30 12:55:25,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 79 transitions, 745 flow [2021-06-30 12:55:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:25,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2021-06-30 12:55:25,909 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.73125 [2021-06-30 12:55:25,910 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 117 transitions. [2021-06-30 12:55:25,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 117 transitions. [2021-06-30 12:55:25,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:25,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 117 transitions. [2021-06-30 12:55:25,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,912 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,912 INFO L185 Difference]: Start difference. First operand has 49 places, 62 transitions, 472 flow. Second operand 5 states and 117 transitions. [2021-06-30 12:55:25,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 79 transitions, 745 flow [2021-06-30 12:55:25,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 79 transitions, 721 flow, removed 12 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:25,919 INFO L241 Difference]: Finished difference. Result has 56 places, 74 transitions, 701 flow [2021-06-30 12:55:25,919 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=701, PETRI_PLACES=56, PETRI_TRANSITIONS=74} [2021-06-30 12:55:25,920 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2021-06-30 12:55:25,920 INFO L482 AbstractCegarLoop]: Abstraction has has 56 places, 74 transitions, 701 flow [2021-06-30 12:55:25,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:25,920 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:25,920 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:25,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-30 12:55:25,921 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:25,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1568527324, now seen corresponding path program 2 times [2021-06-30 12:55:25,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:25,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968016067] [2021-06-30 12:55:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:25,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:25,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:25,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:25,967 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:25,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:25,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:25,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968016067] [2021-06-30 12:55:25,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968016067] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:25,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775836842] [2021-06-30 12:55:25,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:55:26,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 12:55:26,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:26,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-30 12:55:26,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:26,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:26,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:26,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:26,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:26,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:26,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:26,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:26,151 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,186 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:26,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:26,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775836842] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:26,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:26,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-30 12:55:26,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035821352] [2021-06-30 12:55:26,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:26,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:26,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:26,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:26,228 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:26,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 74 transitions, 701 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:26,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:26,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:26,363 INFO L129 PetriNetUnfolder]: 338/570 cut-off events. [2021-06-30 12:55:26,363 INFO L130 PetriNetUnfolder]: For 3871/4517 co-relation queries the response was YES. [2021-06-30 12:55:26,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2737 conditions, 570 events. 338/570 cut-off events. For 3871/4517 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2432 event pairs, 13 based on Foata normal form. 58/580 useless extension candidates. Maximal degree in co-relation 2621. Up to 415 conditions per place. [2021-06-30 12:55:26,372 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 53 selfloop transitions, 25 changer transitions 0/90 dead transitions. [2021-06-30 12:55:26,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 1010 flow [2021-06-30 12:55:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:26,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2021-06-30 12:55:26,374 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.725 [2021-06-30 12:55:26,374 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 116 transitions. [2021-06-30 12:55:26,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 116 transitions. [2021-06-30 12:55:26,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:26,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 116 transitions. [2021-06-30 12:55:26,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,377 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,377 INFO L185 Difference]: Start difference. First operand has 56 places, 74 transitions, 701 flow. Second operand 5 states and 116 transitions. [2021-06-30 12:55:26,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 1010 flow [2021-06-30 12:55:26,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 952 flow, removed 29 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:26,387 INFO L241 Difference]: Finished difference. Result has 62 places, 86 transitions, 872 flow [2021-06-30 12:55:26,388 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=872, PETRI_PLACES=62, PETRI_TRANSITIONS=86} [2021-06-30 12:55:26,388 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2021-06-30 12:55:26,388 INFO L482 AbstractCegarLoop]: Abstraction has has 62 places, 86 transitions, 872 flow [2021-06-30 12:55:26,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,389 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:26,389 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:26,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-30 12:55:26,601 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:26,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:26,601 INFO L82 PathProgramCache]: Analyzing trace with hash 633841572, now seen corresponding path program 3 times [2021-06-30 12:55:26,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:26,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248361361] [2021-06-30 12:55:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:26,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:26,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:26,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:26,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:26,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248361361] [2021-06-30 12:55:26,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248361361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:26,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:26,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:26,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195096203] [2021-06-30 12:55:26,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:26,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:26,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:26,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:26,678 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:26,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 86 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:26,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:26,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:26,807 INFO L129 PetriNetUnfolder]: 337/570 cut-off events. [2021-06-30 12:55:26,807 INFO L130 PetriNetUnfolder]: For 4678/5321 co-relation queries the response was YES. [2021-06-30 12:55:26,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 570 events. 337/570 cut-off events. For 4678/5321 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2447 event pairs, 15 based on Foata normal form. 78/600 useless extension candidates. Maximal degree in co-relation 2793. Up to 362 conditions per place. [2021-06-30 12:55:26,817 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 34 selfloop transitions, 61 changer transitions 0/107 dead transitions. [2021-06-30 12:55:26,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 107 transitions, 1289 flow [2021-06-30 12:55:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2021-06-30 12:55:26,819 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.71875 [2021-06-30 12:55:26,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 138 transitions. [2021-06-30 12:55:26,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 138 transitions. [2021-06-30 12:55:26,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:26,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 138 transitions. [2021-06-30 12:55:26,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,821 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,822 INFO L185 Difference]: Start difference. First operand has 62 places, 86 transitions, 872 flow. Second operand 6 states and 138 transitions. [2021-06-30 12:55:26,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 107 transitions, 1289 flow [2021-06-30 12:55:26,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 107 transitions, 1237 flow, removed 26 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:26,832 INFO L241 Difference]: Finished difference. Result has 68 places, 102 transitions, 1204 flow [2021-06-30 12:55:26,833 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1204, PETRI_PLACES=68, PETRI_TRANSITIONS=102} [2021-06-30 12:55:26,833 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 33 predicate places. [2021-06-30 12:55:26,833 INFO L482 AbstractCegarLoop]: Abstraction has has 68 places, 102 transitions, 1204 flow [2021-06-30 12:55:26,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,833 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:26,833 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:26,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-30 12:55:26,834 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:26,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:26,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1588014554, now seen corresponding path program 1 times [2021-06-30 12:55:26,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:26,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159903308] [2021-06-30 12:55:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:26,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:26,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:26,881 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:26,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:26,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:26,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159903308] [2021-06-30 12:55:26,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159903308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:26,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:26,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:26,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580567521] [2021-06-30 12:55:26,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:26,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:26,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:26,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:26,886 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:26,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 102 transitions, 1204 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:26,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:26,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:26,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:27,036 INFO L129 PetriNetUnfolder]: 422/725 cut-off events. [2021-06-30 12:55:27,036 INFO L130 PetriNetUnfolder]: For 6714/6900 co-relation queries the response was YES. [2021-06-30 12:55:27,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4054 conditions, 725 events. 422/725 cut-off events. For 6714/6900 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3409 event pairs, 19 based on Foata normal form. 65/738 useless extension candidates. Maximal degree in co-relation 3503. Up to 516 conditions per place. [2021-06-30 12:55:27,049 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 75 selfloop transitions, 33 changer transitions 0/120 dead transitions. [2021-06-30 12:55:27,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 120 transitions, 1626 flow [2021-06-30 12:55:27,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:27,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2021-06-30 12:55:27,050 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7375 [2021-06-30 12:55:27,050 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 118 transitions. [2021-06-30 12:55:27,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 118 transitions. [2021-06-30 12:55:27,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:27,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 118 transitions. [2021-06-30 12:55:27,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,052 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,052 INFO L185 Difference]: Start difference. First operand has 68 places, 102 transitions, 1204 flow. Second operand 5 states and 118 transitions. [2021-06-30 12:55:27,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 120 transitions, 1626 flow [2021-06-30 12:55:27,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 120 transitions, 1457 flow, removed 74 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:27,074 INFO L241 Difference]: Finished difference. Result has 74 places, 114 transitions, 1352 flow [2021-06-30 12:55:27,074 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1352, PETRI_PLACES=74, PETRI_TRANSITIONS=114} [2021-06-30 12:55:27,075 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 39 predicate places. [2021-06-30 12:55:27,075 INFO L482 AbstractCegarLoop]: Abstraction has has 74 places, 114 transitions, 1352 flow [2021-06-30 12:55:27,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,075 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:27,075 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:27,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-30 12:55:27,075 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:27,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1380216314, now seen corresponding path program 2 times [2021-06-30 12:55:27,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:27,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491468529] [2021-06-30 12:55:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:27,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:27,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,134 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:27,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:27,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:27,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491468529] [2021-06-30 12:55:27,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491468529] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:27,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:27,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:27,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140395515] [2021-06-30 12:55:27,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:27,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:27,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:27,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:27,140 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:27,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 114 transitions, 1352 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:27,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:27,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:27,286 INFO L129 PetriNetUnfolder]: 443/754 cut-off events. [2021-06-30 12:55:27,287 INFO L130 PetriNetUnfolder]: For 6635/6870 co-relation queries the response was YES. [2021-06-30 12:55:27,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 754 events. 443/754 cut-off events. For 6635/6870 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3530 event pairs, 15 based on Foata normal form. 57/759 useless extension candidates. Maximal degree in co-relation 3541. Up to 561 conditions per place. [2021-06-30 12:55:27,300 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 94 selfloop transitions, 25 changer transitions 0/131 dead transitions. [2021-06-30 12:55:27,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 131 transitions, 1766 flow [2021-06-30 12:55:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:27,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2021-06-30 12:55:27,301 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.73125 [2021-06-30 12:55:27,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 117 transitions. [2021-06-30 12:55:27,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 117 transitions. [2021-06-30 12:55:27,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:27,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 117 transitions. [2021-06-30 12:55:27,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,303 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,303 INFO L185 Difference]: Start difference. First operand has 74 places, 114 transitions, 1352 flow. Second operand 5 states and 117 transitions. [2021-06-30 12:55:27,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 131 transitions, 1766 flow [2021-06-30 12:55:27,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 131 transitions, 1706 flow, removed 30 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:27,319 INFO L241 Difference]: Finished difference. Result has 80 places, 126 transitions, 1541 flow [2021-06-30 12:55:27,319 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1294, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1541, PETRI_PLACES=80, PETRI_TRANSITIONS=126} [2021-06-30 12:55:27,319 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 45 predicate places. [2021-06-30 12:55:27,319 INFO L482 AbstractCegarLoop]: Abstraction has has 80 places, 126 transitions, 1541 flow [2021-06-30 12:55:27,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,320 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:27,320 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:27,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-30 12:55:27,321 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:27,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1588129924, now seen corresponding path program 3 times [2021-06-30 12:55:27,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:27,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85641346] [2021-06-30 12:55:27,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:27,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:27,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:27,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:27,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:27,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85641346] [2021-06-30 12:55:27,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85641346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:27,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:27,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:27,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871014387] [2021-06-30 12:55:27,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:27,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:27,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:27,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:27,393 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:27,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 126 transitions, 1541 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:27,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:27,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:27,562 INFO L129 PetriNetUnfolder]: 470/794 cut-off events. [2021-06-30 12:55:27,562 INFO L130 PetriNetUnfolder]: For 8447/8695 co-relation queries the response was YES. [2021-06-30 12:55:27,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4556 conditions, 794 events. 470/794 cut-off events. For 8447/8695 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3733 event pairs, 19 based on Foata normal form. 85/827 useless extension candidates. Maximal degree in co-relation 3989. Up to 544 conditions per place. [2021-06-30 12:55:27,576 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 75 selfloop transitions, 61 changer transitions 0/148 dead transitions. [2021-06-30 12:55:27,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 148 transitions, 2075 flow [2021-06-30 12:55:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2021-06-30 12:55:27,577 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7239583333333334 [2021-06-30 12:55:27,578 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 139 transitions. [2021-06-30 12:55:27,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 139 transitions. [2021-06-30 12:55:27,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:27,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 139 transitions. [2021-06-30 12:55:27,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,579 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,579 INFO L185 Difference]: Start difference. First operand has 80 places, 126 transitions, 1541 flow. Second operand 6 states and 139 transitions. [2021-06-30 12:55:27,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 148 transitions, 2075 flow [2021-06-30 12:55:27,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 148 transitions, 2017 flow, removed 29 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:27,595 INFO L241 Difference]: Finished difference. Result has 86 places, 142 transitions, 1899 flow [2021-06-30 12:55:27,595 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1899, PETRI_PLACES=86, PETRI_TRANSITIONS=142} [2021-06-30 12:55:27,595 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2021-06-30 12:55:27,595 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 142 transitions, 1899 flow [2021-06-30 12:55:27,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,595 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:27,595 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:27,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-30 12:55:27,596 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:27,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:27,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1032372964, now seen corresponding path program 1 times [2021-06-30 12:55:27,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:27,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627797473] [2021-06-30 12:55:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:27,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,629 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:27,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:27,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:27,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:27,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627797473] [2021-06-30 12:55:27,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627797473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:27,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:27,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:27,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130137437] [2021-06-30 12:55:27,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:27,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:27,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:27,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:27,633 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:27,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 142 transitions, 1899 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:27,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:27,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:27,795 INFO L129 PetriNetUnfolder]: 574/984 cut-off events. [2021-06-30 12:55:27,796 INFO L130 PetriNetUnfolder]: For 10984/11022 co-relation queries the response was YES. [2021-06-30 12:55:27,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5867 conditions, 984 events. 574/984 cut-off events. For 10984/11022 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4993 event pairs, 19 based on Foata normal form. 28/940 useless extension candidates. Maximal degree in co-relation 5253. Up to 712 conditions per place. [2021-06-30 12:55:27,814 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 115 selfloop transitions, 33 changer transitions 0/160 dead transitions. [2021-06-30 12:55:27,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 160 transitions, 2427 flow [2021-06-30 12:55:27,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:27,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2021-06-30 12:55:27,816 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7375 [2021-06-30 12:55:27,816 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 118 transitions. [2021-06-30 12:55:27,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 118 transitions. [2021-06-30 12:55:27,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:27,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 118 transitions. [2021-06-30 12:55:27,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,817 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,817 INFO L185 Difference]: Start difference. First operand has 86 places, 142 transitions, 1899 flow. Second operand 5 states and 118 transitions. [2021-06-30 12:55:27,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 160 transitions, 2427 flow [2021-06-30 12:55:27,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 160 transitions, 2244 flow, removed 81 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:27,840 INFO L241 Difference]: Finished difference. Result has 92 places, 154 transitions, 2059 flow [2021-06-30 12:55:27,841 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1756, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2059, PETRI_PLACES=92, PETRI_TRANSITIONS=154} [2021-06-30 12:55:27,841 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 57 predicate places. [2021-06-30 12:55:27,841 INFO L482 AbstractCegarLoop]: Abstraction has has 92 places, 154 transitions, 2059 flow [2021-06-30 12:55:27,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,841 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:27,841 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:27,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-30 12:55:27,841 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:27,842 INFO L82 PathProgramCache]: Analyzing trace with hash -678272510, now seen corresponding path program 2 times [2021-06-30 12:55:27,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:27,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145459732] [2021-06-30 12:55:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:27,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:27,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:27,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:27,882 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:27,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:27,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:27,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145459732] [2021-06-30 12:55:27,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145459732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:27,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:27,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:27,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414079230] [2021-06-30 12:55:27,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:27,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:27,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:27,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:27,887 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:27,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 154 transitions, 2059 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:27,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:27,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:27,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:28,079 INFO L129 PetriNetUnfolder]: 601/1031 cut-off events. [2021-06-30 12:55:28,080 INFO L130 PetriNetUnfolder]: For 11009/11047 co-relation queries the response was YES. [2021-06-30 12:55:28,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5980 conditions, 1031 events. 601/1031 cut-off events. For 11009/11047 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5289 event pairs, 20 based on Foata normal form. 28/983 useless extension candidates. Maximal degree in co-relation 5241. Up to 726 conditions per place. [2021-06-30 12:55:28,099 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 115 selfloop transitions, 49 changer transitions 0/176 dead transitions. [2021-06-30 12:55:28,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 176 transitions, 2653 flow [2021-06-30 12:55:28,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2021-06-30 12:55:28,100 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7239583333333334 [2021-06-30 12:55:28,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 139 transitions. [2021-06-30 12:55:28,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 139 transitions. [2021-06-30 12:55:28,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:28,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 139 transitions. [2021-06-30 12:55:28,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,102 INFO L185 Difference]: Start difference. First operand has 92 places, 154 transitions, 2059 flow. Second operand 6 states and 139 transitions. [2021-06-30 12:55:28,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 176 transitions, 2653 flow [2021-06-30 12:55:28,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 176 transitions, 2583 flow, removed 35 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:28,123 INFO L241 Difference]: Finished difference. Result has 98 places, 170 transitions, 2380 flow [2021-06-30 12:55:28,124 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2380, PETRI_PLACES=98, PETRI_TRANSITIONS=170} [2021-06-30 12:55:28,124 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 63 predicate places. [2021-06-30 12:55:28,124 INFO L482 AbstractCegarLoop]: Abstraction has has 98 places, 170 transitions, 2380 flow [2021-06-30 12:55:28,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,124 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:28,124 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:28,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-30 12:55:28,124 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:28,125 INFO L82 PathProgramCache]: Analyzing trace with hash -955381070, now seen corresponding path program 1 times [2021-06-30 12:55:28,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:28,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736332208] [2021-06-30 12:55:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:28,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:28,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:28,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:28,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736332208] [2021-06-30 12:55:28,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736332208] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:28,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:28,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:28,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562490880] [2021-06-30 12:55:28,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:28,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:28,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:28,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:28,159 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:28,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 170 transitions, 2380 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:28,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:28,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:28,329 INFO L129 PetriNetUnfolder]: 613/1061 cut-off events. [2021-06-30 12:55:28,329 INFO L130 PetriNetUnfolder]: For 14047/14715 co-relation queries the response was YES. [2021-06-30 12:55:28,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6552 conditions, 1061 events. 613/1061 cut-off events. For 14047/14715 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5407 event pairs, 20 based on Foata normal form. 157/1146 useless extension candidates. Maximal degree in co-relation 5874. Up to 772 conditions per place. [2021-06-30 12:55:28,349 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 144 selfloop transitions, 33 changer transitions 0/189 dead transitions. [2021-06-30 12:55:28,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 189 transitions, 2971 flow [2021-06-30 12:55:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:28,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2021-06-30 12:55:28,351 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.74375 [2021-06-30 12:55:28,351 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 119 transitions. [2021-06-30 12:55:28,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 119 transitions. [2021-06-30 12:55:28,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:28,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 119 transitions. [2021-06-30 12:55:28,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,352 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,352 INFO L185 Difference]: Start difference. First operand has 98 places, 170 transitions, 2380 flow. Second operand 5 states and 119 transitions. [2021-06-30 12:55:28,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 189 transitions, 2971 flow [2021-06-30 12:55:28,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 189 transitions, 2812 flow, removed 69 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:28,380 INFO L241 Difference]: Finished difference. Result has 104 places, 182 transitions, 2566 flow [2021-06-30 12:55:28,380 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2566, PETRI_PLACES=104, PETRI_TRANSITIONS=182} [2021-06-30 12:55:28,380 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 69 predicate places. [2021-06-30 12:55:28,380 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 182 transitions, 2566 flow [2021-06-30 12:55:28,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,381 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:28,381 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:28,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-30 12:55:28,381 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1825323100, now seen corresponding path program 2 times [2021-06-30 12:55:28,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:28,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43286283] [2021-06-30 12:55:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:28,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:28,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:28,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:28,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43286283] [2021-06-30 12:55:28,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43286283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:28,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:28,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:28,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830220686] [2021-06-30 12:55:28,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:28,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:28,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:28,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:28,441 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:28,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 182 transitions, 2566 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:28,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:28,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:28,665 INFO L129 PetriNetUnfolder]: 640/1111 cut-off events. [2021-06-30 12:55:28,665 INFO L130 PetriNetUnfolder]: For 14752/15497 co-relation queries the response was YES. [2021-06-30 12:55:28,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6835 conditions, 1111 events. 640/1111 cut-off events. For 14752/15497 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5718 event pairs, 17 based on Foata normal form. 169/1207 useless extension candidates. Maximal degree in co-relation 6157. Up to 786 conditions per place. [2021-06-30 12:55:28,684 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 144 selfloop transitions, 49 changer transitions 0/205 dead transitions. [2021-06-30 12:55:28,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 205 transitions, 3249 flow [2021-06-30 12:55:28,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2021-06-30 12:55:28,685 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-06-30 12:55:28,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 140 transitions. [2021-06-30 12:55:28,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 140 transitions. [2021-06-30 12:55:28,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:28,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 140 transitions. [2021-06-30 12:55:28,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,687 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,687 INFO L185 Difference]: Start difference. First operand has 104 places, 182 transitions, 2566 flow. Second operand 6 states and 140 transitions. [2021-06-30 12:55:28,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 205 transitions, 3249 flow [2021-06-30 12:55:28,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 205 transitions, 3169 flow, removed 40 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:28,716 INFO L241 Difference]: Finished difference. Result has 110 places, 198 transitions, 2905 flow [2021-06-30 12:55:28,717 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=2486, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2905, PETRI_PLACES=110, PETRI_TRANSITIONS=198} [2021-06-30 12:55:28,717 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 75 predicate places. [2021-06-30 12:55:28,717 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 198 transitions, 2905 flow [2021-06-30 12:55:28,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,718 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:28,718 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:28,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-30 12:55:28,718 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:28,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1465970660, now seen corresponding path program 1 times [2021-06-30 12:55:28,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:28,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274509163] [2021-06-30 12:55:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:28,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,769 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:28,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:28,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:28,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274509163] [2021-06-30 12:55:28,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274509163] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:28,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64973534] [2021-06-30 12:55:28,773 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 [2021-06-30 12:55:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:28,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-30 12:55:28,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:28,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:28,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:28,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:28,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:28,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,838 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:28,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,846 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:28,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64973534] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:28,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:28,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-30 12:55:28,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472304834] [2021-06-30 12:55:28,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:28,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:28,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:28,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:28,883 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:28,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 198 transitions, 2905 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:28,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:28,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:28,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:29,103 INFO L129 PetriNetUnfolder]: 796/1377 cut-off events. [2021-06-30 12:55:29,104 INFO L130 PetriNetUnfolder]: For 18263/18301 co-relation queries the response was YES. [2021-06-30 12:55:29,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8578 conditions, 1377 events. 796/1377 cut-off events. For 18263/18301 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7585 event pairs, 22 based on Foata normal form. 28/1312 useless extension candidates. Maximal degree in co-relation 7935. Up to 1009 conditions per place. [2021-06-30 12:55:29,136 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 172 selfloop transitions, 33 changer transitions 0/217 dead transitions. [2021-06-30 12:55:29,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 217 transitions, 3576 flow [2021-06-30 12:55:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:29,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2021-06-30 12:55:29,137 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.74375 [2021-06-30 12:55:29,137 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 119 transitions. [2021-06-30 12:55:29,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 119 transitions. [2021-06-30 12:55:29,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:29,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 119 transitions. [2021-06-30 12:55:29,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,139 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,140 INFO L185 Difference]: Start difference. First operand has 110 places, 198 transitions, 2905 flow. Second operand 5 states and 119 transitions. [2021-06-30 12:55:29,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 217 transitions, 3576 flow [2021-06-30 12:55:29,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 217 transitions, 3391 flow, removed 82 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:29,168 INFO L241 Difference]: Finished difference. Result has 116 places, 210 transitions, 3089 flow [2021-06-30 12:55:29,169 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=2742, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3089, PETRI_PLACES=116, PETRI_TRANSITIONS=210} [2021-06-30 12:55:29,169 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 81 predicate places. [2021-06-30 12:55:29,169 INFO L482 AbstractCegarLoop]: Abstraction has has 116 places, 210 transitions, 3089 flow [2021-06-30 12:55:29,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,169 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:29,169 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:29,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-30 12:55:29,385 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:29,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1751675724, now seen corresponding path program 2 times [2021-06-30 12:55:29,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:29,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840949543] [2021-06-30 12:55:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:29,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:29,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,432 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:29,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:29,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:29,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840949543] [2021-06-30 12:55:29,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840949543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:29,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:29,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:29,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100661044] [2021-06-30 12:55:29,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:29,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:29,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:29,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:29,435 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:29,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 210 transitions, 3089 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:29,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:29,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:29,650 INFO L129 PetriNetUnfolder]: 817/1401 cut-off events. [2021-06-30 12:55:29,651 INFO L130 PetriNetUnfolder]: For 19161/19199 co-relation queries the response was YES. [2021-06-30 12:55:29,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8744 conditions, 1401 events. 817/1401 cut-off events. For 19161/19199 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7667 event pairs, 18 based on Foata normal form. 28/1341 useless extension candidates. Maximal degree in co-relation 7939. Up to 1054 conditions per place. [2021-06-30 12:55:29,677 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 191 selfloop transitions, 25 changer transitions 0/228 dead transitions. [2021-06-30 12:55:29,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 228 transitions, 3768 flow [2021-06-30 12:55:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2021-06-30 12:55:29,679 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7375 [2021-06-30 12:55:29,679 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 118 transitions. [2021-06-30 12:55:29,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 118 transitions. [2021-06-30 12:55:29,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:29,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 118 transitions. [2021-06-30 12:55:29,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,681 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,681 INFO L185 Difference]: Start difference. First operand has 116 places, 210 transitions, 3089 flow. Second operand 5 states and 118 transitions. [2021-06-30 12:55:29,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 228 transitions, 3768 flow [2021-06-30 12:55:29,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 228 transitions, 3682 flow, removed 43 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:29,714 INFO L241 Difference]: Finished difference. Result has 122 places, 222 transitions, 3320 flow [2021-06-30 12:55:29,714 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=3003, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3320, PETRI_PLACES=122, PETRI_TRANSITIONS=222} [2021-06-30 12:55:29,714 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 87 predicate places. [2021-06-30 12:55:29,714 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 222 transitions, 3320 flow [2021-06-30 12:55:29,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,714 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:29,715 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:29,715 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-30 12:55:29,715 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:29,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:29,715 INFO L82 PathProgramCache]: Analyzing trace with hash 9731936, now seen corresponding path program 3 times [2021-06-30 12:55:29,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:29,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594485325] [2021-06-30 12:55:29,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:29,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:29,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:29,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:29,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:29,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:29,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594485325] [2021-06-30 12:55:29,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594485325] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:29,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775061380] [2021-06-30 12:55:29,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:55:29,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-30 12:55:29,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:29,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-30 12:55:29,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:29,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:29,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:29,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:29,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:29,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:29,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:29,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:29,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:29,847 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:29,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,868 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:29,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:29,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:29,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775061380] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:29,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:29,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 12:55:29,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944381612] [2021-06-30 12:55:29,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:29,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:29,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:29,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:29,878 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:29,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 222 transitions, 3320 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:29,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:29,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:29,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:30,121 INFO L129 PetriNetUnfolder]: 844/1439 cut-off events. [2021-06-30 12:55:30,122 INFO L130 PetriNetUnfolder]: For 21701/21739 co-relation queries the response was YES. [2021-06-30 12:55:30,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9276 conditions, 1439 events. 844/1439 cut-off events. For 21701/21739 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7832 event pairs, 18 based on Foata normal form. 28/1379 useless extension candidates. Maximal degree in co-relation 8487. Up to 1037 conditions per place. [2021-06-30 12:55:30,151 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 172 selfloop transitions, 61 changer transitions 0/245 dead transitions. [2021-06-30 12:55:30,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 245 transitions, 4143 flow [2021-06-30 12:55:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2021-06-30 12:55:30,153 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-06-30 12:55:30,153 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 140 transitions. [2021-06-30 12:55:30,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 140 transitions. [2021-06-30 12:55:30,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:30,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 140 transitions. [2021-06-30 12:55:30,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,154 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,154 INFO L185 Difference]: Start difference. First operand has 122 places, 222 transitions, 3320 flow. Second operand 6 states and 140 transitions. [2021-06-30 12:55:30,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 245 transitions, 4143 flow [2021-06-30 12:55:30,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 245 transitions, 4049 flow, removed 47 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:30,192 INFO L241 Difference]: Finished difference. Result has 128 places, 238 transitions, 3734 flow [2021-06-30 12:55:30,192 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=3226, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3734, PETRI_PLACES=128, PETRI_TRANSITIONS=238} [2021-06-30 12:55:30,192 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 93 predicate places. [2021-06-30 12:55:30,192 INFO L482 AbstractCegarLoop]: Abstraction has has 128 places, 238 transitions, 3734 flow [2021-06-30 12:55:30,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,193 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:30,193 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:30,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-30 12:55:30,413 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:30,413 INFO L82 PathProgramCache]: Analyzing trace with hash 309763298, now seen corresponding path program 1 times [2021-06-30 12:55:30,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:30,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763582102] [2021-06-30 12:55:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:30,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,443 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:30,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:30,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:30,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763582102] [2021-06-30 12:55:30,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763582102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:30,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:30,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:30,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475162393] [2021-06-30 12:55:30,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:30,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:30,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:30,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:30,447 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:30,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 238 transitions, 3734 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:30,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:30,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:30,696 INFO L129 PetriNetUnfolder]: 919/1588 cut-off events. [2021-06-30 12:55:30,697 INFO L130 PetriNetUnfolder]: For 25971/25971 co-relation queries the response was YES. [2021-06-30 12:55:30,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10510 conditions, 1588 events. 919/1588 cut-off events. For 25971/25971 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 8830 event pairs, 24 based on Foata normal form. 1/1499 useless extension candidates. Maximal degree in co-relation 9495. Up to 1176 conditions per place. [2021-06-30 12:55:30,723 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 212 selfloop transitions, 33 changer transitions 0/257 dead transitions. [2021-06-30 12:55:30,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 257 transitions, 4529 flow [2021-06-30 12:55:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:30,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2021-06-30 12:55:30,724 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.74375 [2021-06-30 12:55:30,724 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 119 transitions. [2021-06-30 12:55:30,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 119 transitions. [2021-06-30 12:55:30,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:30,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 119 transitions. [2021-06-30 12:55:30,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,725 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,726 INFO L185 Difference]: Start difference. First operand has 128 places, 238 transitions, 3734 flow. Second operand 5 states and 119 transitions. [2021-06-30 12:55:30,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 257 transitions, 4529 flow [2021-06-30 12:55:30,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 257 transitions, 4298 flow, removed 105 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:30,771 INFO L241 Difference]: Finished difference. Result has 134 places, 250 transitions, 3916 flow [2021-06-30 12:55:30,771 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=3541, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3916, PETRI_PLACES=134, PETRI_TRANSITIONS=250} [2021-06-30 12:55:30,771 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 99 predicate places. [2021-06-30 12:55:30,771 INFO L482 AbstractCegarLoop]: Abstraction has has 134 places, 250 transitions, 3916 flow [2021-06-30 12:55:30,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,772 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:30,772 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:30,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-30 12:55:30,772 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:30,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:30,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1802506766, now seen corresponding path program 2 times [2021-06-30 12:55:30,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:30,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673211618] [2021-06-30 12:55:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:30,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:30,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:30,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:30,810 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:30,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:30,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:30,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673211618] [2021-06-30 12:55:30,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673211618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:30,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:30,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:55:30,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757342009] [2021-06-30 12:55:30,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:55:30,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:30,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:55:30,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:55:30,814 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:30,814 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 250 transitions, 3916 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:30,814 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:30,814 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:30,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:31,093 INFO L129 PetriNetUnfolder]: 940/1618 cut-off events. [2021-06-30 12:55:31,093 INFO L130 PetriNetUnfolder]: For 26151/26151 co-relation queries the response was YES. [2021-06-30 12:55:31,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10652 conditions, 1618 events. 940/1618 cut-off events. For 26151/26151 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 8991 event pairs, 24 based on Foata normal form. 1/1529 useless extension candidates. Maximal degree in co-relation 9851. Up to 1221 conditions per place. [2021-06-30 12:55:31,124 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 231 selfloop transitions, 25 changer transitions 0/268 dead transitions. [2021-06-30 12:55:31,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 268 transitions, 4701 flow [2021-06-30 12:55:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:55:31,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:55:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2021-06-30 12:55:31,125 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7375 [2021-06-30 12:55:31,125 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 118 transitions. [2021-06-30 12:55:31,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 118 transitions. [2021-06-30 12:55:31,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:31,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 118 transitions. [2021-06-30 12:55:31,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,127 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,127 INFO L185 Difference]: Start difference. First operand has 134 places, 250 transitions, 3916 flow. Second operand 5 states and 118 transitions. [2021-06-30 12:55:31,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 268 transitions, 4701 flow [2021-06-30 12:55:31,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 268 transitions, 4605 flow, removed 48 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:31,175 INFO L241 Difference]: Finished difference. Result has 140 places, 262 transitions, 4163 flow [2021-06-30 12:55:31,176 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=3820, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4163, PETRI_PLACES=140, PETRI_TRANSITIONS=262} [2021-06-30 12:55:31,176 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 105 predicate places. [2021-06-30 12:55:31,176 INFO L482 AbstractCegarLoop]: Abstraction has has 140 places, 262 transitions, 4163 flow [2021-06-30 12:55:31,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,176 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:31,176 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:31,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-30 12:55:31,177 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:31,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:31,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1194911802, now seen corresponding path program 3 times [2021-06-30 12:55:31,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:31,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222061416] [2021-06-30 12:55:31,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:31,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:31,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,215 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:31,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:31,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:31,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222061416] [2021-06-30 12:55:31,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222061416] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:31,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:31,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:31,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734315104] [2021-06-30 12:55:31,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:31,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:31,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:31,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:31,220 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2021-06-30 12:55:31,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 262 transitions, 4163 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:31,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2021-06-30 12:55:31,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:31,558 INFO L129 PetriNetUnfolder]: 967/1659 cut-off events. [2021-06-30 12:55:31,558 INFO L130 PetriNetUnfolder]: For 29164/29164 co-relation queries the response was YES. [2021-06-30 12:55:31,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11216 conditions, 1659 events. 967/1659 cut-off events. For 29164/29164 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 9191 event pairs, 22 based on Foata normal form. 1/1570 useless extension candidates. Maximal degree in co-relation 10412. Up to 1204 conditions per place. [2021-06-30 12:55:31,587 INFO L132 encePairwiseOnDemand]: 24/32 looper letters, 212 selfloop transitions, 61 changer transitions 0/285 dead transitions. [2021-06-30 12:55:31,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 285 transitions, 5102 flow [2021-06-30 12:55:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2021-06-30 12:55:31,588 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-06-30 12:55:31,588 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 140 transitions. [2021-06-30 12:55:31,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 140 transitions. [2021-06-30 12:55:31,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:31,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 140 transitions. [2021-06-30 12:55:31,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,590 INFO L185 Difference]: Start difference. First operand has 140 places, 262 transitions, 4163 flow. Second operand 6 states and 140 transitions. [2021-06-30 12:55:31,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 285 transitions, 5102 flow [2021-06-30 12:55:31,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 285 transitions, 4992 flow, removed 55 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:31,642 INFO L241 Difference]: Finished difference. Result has 146 places, 278 transitions, 4597 flow [2021-06-30 12:55:31,643 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=4053, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4597, PETRI_PLACES=146, PETRI_TRANSITIONS=278} [2021-06-30 12:55:31,643 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 111 predicate places. [2021-06-30 12:55:31,643 INFO L482 AbstractCegarLoop]: Abstraction has has 146 places, 278 transitions, 4597 flow [2021-06-30 12:55:31,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,643 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:31,643 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:31,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-30 12:55:31,644 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:31,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:31,644 INFO L82 PathProgramCache]: Analyzing trace with hash -15070844, now seen corresponding path program 1 times [2021-06-30 12:55:31,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:31,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718171227] [2021-06-30 12:55:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:31,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:31,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:31,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:31,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:31,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:31,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718171227] [2021-06-30 12:55:31,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718171227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:31,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:31,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:31,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737022869] [2021-06-30 12:55:31,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:31,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:31,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:31,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:31,691 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:31,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 278 transitions, 4597 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:31,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:31,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:31,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:32,199 INFO L129 PetriNetUnfolder]: 1452/2357 cut-off events. [2021-06-30 12:55:32,200 INFO L130 PetriNetUnfolder]: For 49226/52537 co-relation queries the response was YES. [2021-06-30 12:55:32,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16485 conditions, 2357 events. 1452/2357 cut-off events. For 49226/52537 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 12920 event pairs, 127 based on Foata normal form. 352/2599 useless extension candidates. Maximal degree in co-relation 15397. Up to 1586 conditions per place. [2021-06-30 12:55:32,237 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 216 selfloop transitions, 81 changer transitions 0/307 dead transitions. [2021-06-30 12:55:32,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 307 transitions, 5631 flow [2021-06-30 12:55:32,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2021-06-30 12:55:32,238 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-30 12:55:32,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 136 transitions. [2021-06-30 12:55:32,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 136 transitions. [2021-06-30 12:55:32,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:32,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 136 transitions. [2021-06-30 12:55:32,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,240 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,240 INFO L185 Difference]: Start difference. First operand has 146 places, 278 transitions, 4597 flow. Second operand 6 states and 136 transitions. [2021-06-30 12:55:32,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 307 transitions, 5631 flow [2021-06-30 12:55:32,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 307 transitions, 5370 flow, removed 120 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:32,317 INFO L241 Difference]: Finished difference. Result has 154 places, 294 transitions, 5041 flow [2021-06-30 12:55:32,317 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=4386, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5041, PETRI_PLACES=154, PETRI_TRANSITIONS=294} [2021-06-30 12:55:32,318 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 119 predicate places. [2021-06-30 12:55:32,318 INFO L482 AbstractCegarLoop]: Abstraction has has 154 places, 294 transitions, 5041 flow [2021-06-30 12:55:32,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,318 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:32,318 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:32,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-30 12:55:32,318 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:32,319 INFO L82 PathProgramCache]: Analyzing trace with hash -2095201286, now seen corresponding path program 2 times [2021-06-30 12:55:32,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:32,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515310073] [2021-06-30 12:55:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:32,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:32,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:32,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:32,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:32,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:32,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:32,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:32,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:32,370 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:32,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:32,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:32,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515310073] [2021-06-30 12:55:32,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515310073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:32,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:32,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:55:32,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533887702] [2021-06-30 12:55:32,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:32,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:32,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:32,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:32,374 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:32,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 294 transitions, 5041 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:32,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:32,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:32,843 INFO L129 PetriNetUnfolder]: 1518/2445 cut-off events. [2021-06-30 12:55:32,843 INFO L130 PetriNetUnfolder]: For 51788/55345 co-relation queries the response was YES. [2021-06-30 12:55:32,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17438 conditions, 2445 events. 1518/2445 cut-off events. For 51788/55345 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 13328 event pairs, 137 based on Foata normal form. 372/2707 useless extension candidates. Maximal degree in co-relation 16350. Up to 1552 conditions per place. [2021-06-30 12:55:32,957 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 201 selfloop transitions, 117 changer transitions 0/328 dead transitions. [2021-06-30 12:55:32,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 328 transitions, 6177 flow [2021-06-30 12:55:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:55:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:55:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 12:55:32,959 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 12:55:32,959 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 12:55:32,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 12:55:32,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:32,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 12:55:32,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,960 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:32,960 INFO L185 Difference]: Start difference. First operand has 154 places, 294 transitions, 5041 flow. Second operand 7 states and 156 transitions. [2021-06-30 12:55:32,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 328 transitions, 6177 flow [2021-06-30 12:55:33,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 328 transitions, 6035 flow, removed 71 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:33,056 INFO L241 Difference]: Finished difference. Result has 162 places, 314 transitions, 5705 flow [2021-06-30 12:55:33,056 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=4899, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5705, PETRI_PLACES=162, PETRI_TRANSITIONS=314} [2021-06-30 12:55:33,056 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 127 predicate places. [2021-06-30 12:55:33,056 INFO L482 AbstractCegarLoop]: Abstraction has has 162 places, 314 transitions, 5705 flow [2021-06-30 12:55:33,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:33,057 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:33,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-30 12:55:33,057 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash -757444312, now seen corresponding path program 3 times [2021-06-30 12:55:33,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:33,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361477490] [2021-06-30 12:55:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:33,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:33,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,102 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:33,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:33,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:33,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361477490] [2021-06-30 12:55:33,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361477490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:33,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:33,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:33,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215483289] [2021-06-30 12:55:33,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:33,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:33,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:33,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:33,107 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:33,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 314 transitions, 5705 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:33,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:33,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:33,649 INFO L129 PetriNetUnfolder]: 1572/2538 cut-off events. [2021-06-30 12:55:33,650 INFO L130 PetriNetUnfolder]: For 58805/62465 co-relation queries the response was YES. [2021-06-30 12:55:33,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18968 conditions, 2538 events. 1572/2538 cut-off events. For 58805/62465 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 13919 event pairs, 133 based on Foata normal form. 392/2820 useless extension candidates. Maximal degree in co-relation 17788. Up to 1868 conditions per place. [2021-06-30 12:55:33,684 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 271 selfloop transitions, 61 changer transitions 0/342 dead transitions. [2021-06-30 12:55:33,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 342 transitions, 6801 flow [2021-06-30 12:55:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2021-06-30 12:55:33,686 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.703125 [2021-06-30 12:55:33,686 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 135 transitions. [2021-06-30 12:55:33,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 135 transitions. [2021-06-30 12:55:33,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:33,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 135 transitions. [2021-06-30 12:55:33,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,687 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,687 INFO L185 Difference]: Start difference. First operand has 162 places, 314 transitions, 5705 flow. Second operand 6 states and 135 transitions. [2021-06-30 12:55:33,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 342 transitions, 6801 flow [2021-06-30 12:55:33,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 342 transitions, 6477 flow, removed 126 selfloop flow, removed 2 redundant places. [2021-06-30 12:55:33,786 INFO L241 Difference]: Finished difference. Result has 168 places, 330 transitions, 5985 flow [2021-06-30 12:55:33,786 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=5413, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5985, PETRI_PLACES=168, PETRI_TRANSITIONS=330} [2021-06-30 12:55:33,786 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 133 predicate places. [2021-06-30 12:55:33,786 INFO L482 AbstractCegarLoop]: Abstraction has has 168 places, 330 transitions, 5985 flow [2021-06-30 12:55:33,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,787 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:33,787 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:33,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-30 12:55:33,787 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:33,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1933973856, now seen corresponding path program 4 times [2021-06-30 12:55:33,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:33,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955572399] [2021-06-30 12:55:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:33,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:33,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:33,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:33,841 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:33,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:33,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:33,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955572399] [2021-06-30 12:55:33,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955572399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:33,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:33,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:33,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97716894] [2021-06-30 12:55:33,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:33,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:33,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:33,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:33,846 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:33,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 330 transitions, 5985 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:33,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:33,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:33,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:34,332 INFO L129 PetriNetUnfolder]: 1620/2597 cut-off events. [2021-06-30 12:55:34,332 INFO L130 PetriNetUnfolder]: For 62319/66193 co-relation queries the response was YES. [2021-06-30 12:55:34,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19475 conditions, 2597 events. 1620/2597 cut-off events. For 62319/66193 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 14164 event pairs, 131 based on Foata normal form. 329/2816 useless extension candidates. Maximal degree in co-relation 18188. Up to 1982 conditions per place. [2021-06-30 12:55:34,367 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 294 selfloop transitions, 53 changer transitions 0/357 dead transitions. [2021-06-30 12:55:34,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 357 transitions, 7089 flow [2021-06-30 12:55:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2021-06-30 12:55:34,368 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2021-06-30 12:55:34,368 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 134 transitions. [2021-06-30 12:55:34,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 134 transitions. [2021-06-30 12:55:34,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:34,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 134 transitions. [2021-06-30 12:55:34,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:34,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:34,370 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:34,370 INFO L185 Difference]: Start difference. First operand has 168 places, 330 transitions, 5985 flow. Second operand 6 states and 134 transitions. [2021-06-30 12:55:34,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 357 transitions, 7089 flow [2021-06-30 12:55:34,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 357 transitions, 6937 flow, removed 76 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:34,453 INFO L241 Difference]: Finished difference. Result has 176 places, 346 transitions, 6388 flow [2021-06-30 12:55:34,453 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=5833, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6388, PETRI_PLACES=176, PETRI_TRANSITIONS=346} [2021-06-30 12:55:34,453 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 141 predicate places. [2021-06-30 12:55:34,453 INFO L482 AbstractCegarLoop]: Abstraction has has 176 places, 346 transitions, 6388 flow [2021-06-30 12:55:34,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:34,454 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:34,454 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:34,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-30 12:55:34,454 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:34,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:34,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1200408038, now seen corresponding path program 5 times [2021-06-30 12:55:34,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:34,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318056822] [2021-06-30 12:55:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:34,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:34,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:34,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:34,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:34,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:34,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:34,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:34,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:34,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:34,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:34,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:34,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:34,576 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:34,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:34,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:34,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318056822] [2021-06-30 12:55:34,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318056822] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:34,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:34,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:55:34,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262211164] [2021-06-30 12:55:34,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:34,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:34,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:34,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:34,580 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:34,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 346 transitions, 6388 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:34,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:34,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:34,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:35,073 INFO L129 PetriNetUnfolder]: 1680/2683 cut-off events. [2021-06-30 12:55:35,073 INFO L130 PetriNetUnfolder]: For 69284/73207 co-relation queries the response was YES. [2021-06-30 12:55:35,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20750 conditions, 2683 events. 1680/2683 cut-off events. For 69284/73207 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 14617 event pairs, 150 based on Foata normal form. 427/3000 useless extension candidates. Maximal degree in co-relation 19459. Up to 1824 conditions per place. [2021-06-30 12:55:35,112 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 244 selfloop transitions, 125 changer transitions 0/379 dead transitions. [2021-06-30 12:55:35,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 379 transitions, 7682 flow [2021-06-30 12:55:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:55:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:55:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-06-30 12:55:35,113 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6919642857142857 [2021-06-30 12:55:35,113 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-06-30 12:55:35,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-06-30 12:55:35,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:35,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-06-30 12:55:35,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,115 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,115 INFO L185 Difference]: Start difference. First operand has 176 places, 346 transitions, 6388 flow. Second operand 7 states and 155 transitions. [2021-06-30 12:55:35,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 379 transitions, 7682 flow [2021-06-30 12:55:35,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 379 transitions, 7512 flow, removed 85 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:35,302 INFO L241 Difference]: Finished difference. Result has 184 places, 366 transitions, 7088 flow [2021-06-30 12:55:35,302 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=6218, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7088, PETRI_PLACES=184, PETRI_TRANSITIONS=366} [2021-06-30 12:55:35,302 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 149 predicate places. [2021-06-30 12:55:35,302 INFO L482 AbstractCegarLoop]: Abstraction has has 184 places, 366 transitions, 7088 flow [2021-06-30 12:55:35,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,302 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:35,303 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:35,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-30 12:55:35,303 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:35,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:35,303 INFO L82 PathProgramCache]: Analyzing trace with hash 908369572, now seen corresponding path program 6 times [2021-06-30 12:55:35,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:35,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703602011] [2021-06-30 12:55:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:35,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:35,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:35,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:35,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:35,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:35,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:35,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:35,357 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:35,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:35,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:35,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703602011] [2021-06-30 12:55:35,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703602011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:35,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:35,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:55:35,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342234679] [2021-06-30 12:55:35,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:35,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:35,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:35,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:35,361 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:35,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 366 transitions, 7088 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:35,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:35,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:35,881 INFO L129 PetriNetUnfolder]: 1746/2799 cut-off events. [2021-06-30 12:55:35,881 INFO L130 PetriNetUnfolder]: For 78908/82956 co-relation queries the response was YES. [2021-06-30 12:55:35,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22545 conditions, 2799 events. 1746/2799 cut-off events. For 78908/82956 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 15466 event pairs, 175 based on Foata normal form. 447/3134 useless extension candidates. Maximal degree in co-relation 21251. Up to 1718 conditions per place. [2021-06-30 12:55:35,920 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 245 selfloop transitions, 145 changer transitions 0/400 dead transitions. [2021-06-30 12:55:35,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 400 transitions, 8486 flow [2021-06-30 12:55:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:55:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:55:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 12:55:35,922 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 12:55:35,922 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 12:55:35,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 12:55:35,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:35,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 12:55:35,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,923 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:35,924 INFO L185 Difference]: Start difference. First operand has 184 places, 366 transitions, 7088 flow. Second operand 7 states and 156 transitions. [2021-06-30 12:55:35,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 400 transitions, 8486 flow [2021-06-30 12:55:36,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 400 transitions, 8092 flow, removed 165 selfloop flow, removed 2 redundant places. [2021-06-30 12:55:36,049 INFO L241 Difference]: Finished difference. Result has 190 places, 386 transitions, 7691 flow [2021-06-30 12:55:36,049 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=6768, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7691, PETRI_PLACES=190, PETRI_TRANSITIONS=386} [2021-06-30 12:55:36,049 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 155 predicate places. [2021-06-30 12:55:36,049 INFO L482 AbstractCegarLoop]: Abstraction has has 190 places, 386 transitions, 7691 flow [2021-06-30 12:55:36,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:36,050 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:36,050 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:36,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-30 12:55:36,050 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:36,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:36,050 INFO L82 PathProgramCache]: Analyzing trace with hash 984676964, now seen corresponding path program 7 times [2021-06-30 12:55:36,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:36,050 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417834946] [2021-06-30 12:55:36,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:36,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:36,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:36,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:36,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:36,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417834946] [2021-06-30 12:55:36,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417834946] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:36,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702144361] [2021-06-30 12:55:36,101 INFO L93 rtionOrderModulation]: Changing assertion order to 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 [2021-06-30 12:55:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:36,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:55:36,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:36,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:36,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:36,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:36,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:36,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,178 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:36,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:36,190 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,215 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:36,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:36,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:36,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702144361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:36,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:36,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 12:55:36,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162565842] [2021-06-30 12:55:36,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:36,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:36,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:36,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:36,234 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:36,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 386 transitions, 7691 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:36,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:36,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:36,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:36,753 INFO L129 PetriNetUnfolder]: 1902/3021 cut-off events. [2021-06-30 12:55:36,753 INFO L130 PetriNetUnfolder]: For 87205/91483 co-relation queries the response was YES. [2021-06-30 12:55:36,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24566 conditions, 3021 events. 1902/3021 cut-off events. For 87205/91483 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 16653 event pairs, 171 based on Foata normal form. 467/3376 useless extension candidates. Maximal degree in co-relation 23267. Up to 2086 conditions per place. [2021-06-30 12:55:36,804 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 328 selfloop transitions, 109 changer transitions 0/447 dead transitions. [2021-06-30 12:55:36,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 447 transitions, 9568 flow [2021-06-30 12:55:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:55:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:55:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-06-30 12:55:36,807 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6919642857142857 [2021-06-30 12:55:36,807 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-06-30 12:55:36,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-06-30 12:55:36,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:36,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-06-30 12:55:36,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:36,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:36,813 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:36,813 INFO L185 Difference]: Start difference. First operand has 190 places, 386 transitions, 7691 flow. Second operand 7 states and 155 transitions. [2021-06-30 12:55:36,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 447 transitions, 9568 flow [2021-06-30 12:55:36,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 447 transitions, 9322 flow, removed 107 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:36,951 INFO L241 Difference]: Finished difference. Result has 199 places, 434 transitions, 8850 flow [2021-06-30 12:55:36,952 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=7445, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8850, PETRI_PLACES=199, PETRI_TRANSITIONS=434} [2021-06-30 12:55:36,952 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 164 predicate places. [2021-06-30 12:55:36,952 INFO L482 AbstractCegarLoop]: Abstraction has has 199 places, 434 transitions, 8850 flow [2021-06-30 12:55:36,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:36,953 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:36,953 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:37,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:55:37,165 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:37,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1078183160, now seen corresponding path program 8 times [2021-06-30 12:55:37,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:37,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827695797] [2021-06-30 12:55:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:37,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:37,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:37,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:37,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:37,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:37,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:37,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:37,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:37,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:37,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:37,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:37,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:37,246 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:37,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:37,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:37,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827695797] [2021-06-30 12:55:37,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827695797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:37,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:37,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:55:37,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381712126] [2021-06-30 12:55:37,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:37,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:37,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:37,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:37,251 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:37,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 434 transitions, 8850 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:37,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:37,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:37,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:37,882 INFO L129 PetriNetUnfolder]: 1974/3129 cut-off events. [2021-06-30 12:55:37,882 INFO L130 PetriNetUnfolder]: For 99315/103653 co-relation queries the response was YES. [2021-06-30 12:55:37,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26434 conditions, 3129 events. 1974/3129 cut-off events. For 99315/103653 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 17329 event pairs, 213 based on Foata normal form. 492/3509 useless extension candidates. Maximal degree in co-relation 25123. Up to 1672 conditions per place. [2021-06-30 12:55:37,929 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 210 selfloop transitions, 253 changer transitions 0/473 dead transitions. [2021-06-30 12:55:37,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 473 transitions, 10504 flow [2021-06-30 12:55:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-06-30 12:55:37,930 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-06-30 12:55:37,930 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-06-30 12:55:37,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-06-30 12:55:37,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:37,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-06-30 12:55:37,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:37,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:37,931 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:37,931 INFO L185 Difference]: Start difference. First operand has 199 places, 434 transitions, 8850 flow. Second operand 8 states and 176 transitions. [2021-06-30 12:55:37,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 473 transitions, 10504 flow [2021-06-30 12:55:38,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 473 transitions, 10272 flow, removed 116 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:38,058 INFO L241 Difference]: Finished difference. Result has 207 places, 458 transitions, 9940 flow [2021-06-30 12:55:38,058 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=8618, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9940, PETRI_PLACES=207, PETRI_TRANSITIONS=458} [2021-06-30 12:55:38,058 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 172 predicate places. [2021-06-30 12:55:38,058 INFO L482 AbstractCegarLoop]: Abstraction has has 207 places, 458 transitions, 9940 flow [2021-06-30 12:55:38,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:38,059 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:38,059 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:38,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-30 12:55:38,059 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:38,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1047395914, now seen corresponding path program 9 times [2021-06-30 12:55:38,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:38,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26752149] [2021-06-30 12:55:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:38,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:38,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:38,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:38,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:38,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26752149] [2021-06-30 12:55:38,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26752149] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:38,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119230302] [2021-06-30 12:55:38,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:55:38,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-30 12:55:38,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:38,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:55:38,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:38,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:38,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:38,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:38,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:38,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:38,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:38,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:38,194 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:55:38,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:38,198 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:38,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,204 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:38,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:38,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:38,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119230302] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:38,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:38,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:55:38,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748078998] [2021-06-30 12:55:38,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:38,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:38,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:38,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:38,229 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:38,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 458 transitions, 9940 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:38,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:38,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:38,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:38,936 INFO L129 PetriNetUnfolder]: 2037/3221 cut-off events. [2021-06-30 12:55:38,936 INFO L130 PetriNetUnfolder]: For 111888/116274 co-relation queries the response was YES. [2021-06-30 12:55:38,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28747 conditions, 3221 events. 2037/3221 cut-off events. For 111888/116274 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 17864 event pairs, 190 based on Foata normal form. 492/3601 useless extension candidates. Maximal degree in co-relation 27430. Up to 2206 conditions per place. [2021-06-30 12:55:39,009 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 352 selfloop transitions, 133 changer transitions 0/495 dead transitions. [2021-06-30 12:55:39,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 495 transitions, 11642 flow [2021-06-30 12:55:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:55:39,010 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:55:39,010 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:55:39,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:55:39,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:39,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:55:39,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:39,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:39,011 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:39,011 INFO L185 Difference]: Start difference. First operand has 207 places, 458 transitions, 9940 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:55:39,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 495 transitions, 11642 flow [2021-06-30 12:55:39,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 495 transitions, 11084 flow, removed 210 selfloop flow, removed 2 redundant places. [2021-06-30 12:55:39,172 INFO L241 Difference]: Finished difference. Result has 213 places, 482 transitions, 10421 flow [2021-06-30 12:55:39,173 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=9478, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10421, PETRI_PLACES=213, PETRI_TRANSITIONS=482} [2021-06-30 12:55:39,173 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 178 predicate places. [2021-06-30 12:55:39,173 INFO L482 AbstractCegarLoop]: Abstraction has has 213 places, 482 transitions, 10421 flow [2021-06-30 12:55:39,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:39,173 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:39,173 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:39,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:55:39,384 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:39,385 INFO L82 PathProgramCache]: Analyzing trace with hash 310446330, now seen corresponding path program 10 times [2021-06-30 12:55:39,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:39,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929070057] [2021-06-30 12:55:39,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:39,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:39,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:39,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:39,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:39,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:39,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:39,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:39,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:39,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:39,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:39,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:39,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:39,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:39,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:39,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:39,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:39,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929070057] [2021-06-30 12:55:39,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929070057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:39,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:39,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:55:39,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886665960] [2021-06-30 12:55:39,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:39,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:39,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:39,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:39,454 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:39,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 482 transitions, 10421 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:39,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:39,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:39,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:40,113 INFO L129 PetriNetUnfolder]: 2145/3394 cut-off events. [2021-06-30 12:55:40,113 INFO L130 PetriNetUnfolder]: For 117464/121919 co-relation queries the response was YES. [2021-06-30 12:55:40,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30006 conditions, 3394 events. 2145/3394 cut-off events. For 117464/121919 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 18964 event pairs, 223 based on Foata normal form. 492/3776 useless extension candidates. Maximal degree in co-relation 28685. Up to 2344 conditions per place. [2021-06-30 12:55:40,164 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 360 selfloop transitions, 165 changer transitions 0/535 dead transitions. [2021-06-30 12:55:40,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 535 transitions, 12588 flow [2021-06-30 12:55:40,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:55:40,165 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:55:40,165 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:55:40,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:55:40,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:40,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:55:40,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:40,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:40,166 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:40,166 INFO L185 Difference]: Start difference. First operand has 213 places, 482 transitions, 10421 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:55:40,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 535 transitions, 12588 flow [2021-06-30 12:55:40,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 535 transitions, 12132 flow, removed 228 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:40,335 INFO L241 Difference]: Finished difference. Result has 224 places, 522 transitions, 11613 flow [2021-06-30 12:55:40,336 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=10133, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11613, PETRI_PLACES=224, PETRI_TRANSITIONS=522} [2021-06-30 12:55:40,336 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 189 predicate places. [2021-06-30 12:55:40,336 INFO L482 AbstractCegarLoop]: Abstraction has has 224 places, 522 transitions, 11613 flow [2021-06-30 12:55:40,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:40,336 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:40,336 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:40,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-30 12:55:40,336 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:40,337 INFO L82 PathProgramCache]: Analyzing trace with hash 774112498, now seen corresponding path program 11 times [2021-06-30 12:55:40,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:40,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758694155] [2021-06-30 12:55:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:40,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:40,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:40,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:40,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758694155] [2021-06-30 12:55:40,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758694155] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:40,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564559753] [2021-06-30 12:55:40,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-30 12:55:40,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-30 12:55:40,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:40,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:55:40,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:40,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:40,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:40,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:40,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:40,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:40,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:40,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:40,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:40,470 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:55:40,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:40,473 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:40,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,487 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:40,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:40,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:40,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564559753] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:40,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:40,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:55:40,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293588422] [2021-06-30 12:55:40,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:40,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:40,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:40,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:40,500 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:40,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 522 transitions, 11613 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:40,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:40,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:40,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:41,281 INFO L129 PetriNetUnfolder]: 2472/3899 cut-off events. [2021-06-30 12:55:41,281 INFO L130 PetriNetUnfolder]: For 142337/146824 co-relation queries the response was YES. [2021-06-30 12:55:41,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35584 conditions, 3899 events. 2472/3899 cut-off events. For 142337/146824 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 21971 event pairs, 276 based on Foata normal form. 492/4280 useless extension candidates. Maximal degree in co-relation 34258. Up to 2762 conditions per place. [2021-06-30 12:55:41,361 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 448 selfloop transitions, 189 changer transitions 0/647 dead transitions. [2021-06-30 12:55:41,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 647 transitions, 15498 flow [2021-06-30 12:55:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:55:41,362 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:55:41,362 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:55:41,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:55:41,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:41,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:55:41,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:41,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:41,363 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:41,363 INFO L185 Difference]: Start difference. First operand has 224 places, 522 transitions, 11613 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:55:41,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 647 transitions, 15498 flow [2021-06-30 12:55:41,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 647 transitions, 14916 flow, removed 264 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:41,558 INFO L241 Difference]: Finished difference. Result has 236 places, 634 transitions, 14465 flow [2021-06-30 12:55:41,559 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=11257, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14465, PETRI_PLACES=236, PETRI_TRANSITIONS=634} [2021-06-30 12:55:41,559 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 201 predicate places. [2021-06-30 12:55:41,559 INFO L482 AbstractCegarLoop]: Abstraction has has 236 places, 634 transitions, 14465 flow [2021-06-30 12:55:41,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:41,559 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:41,559 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:41,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:55:41,760 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:41,760 INFO L82 PathProgramCache]: Analyzing trace with hash -962930390, now seen corresponding path program 12 times [2021-06-30 12:55:41,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:41,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473413777] [2021-06-30 12:55:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:41,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:41,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:41,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:41,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:41,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:41,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:41,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:41,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:41,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:41,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:41,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:41,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:41,798 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:41,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:41,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:41,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:41,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473413777] [2021-06-30 12:55:41,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473413777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:41,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:41,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:41,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943529533] [2021-06-30 12:55:41,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:41,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:41,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:41,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:41,802 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:41,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 634 transitions, 14465 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:41,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:41,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:41,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:42,537 INFO L129 PetriNetUnfolder]: 2526/4021 cut-off events. [2021-06-30 12:55:42,537 INFO L130 PetriNetUnfolder]: For 153364/158119 co-relation queries the response was YES. [2021-06-30 12:55:42,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37554 conditions, 4021 events. 2526/4021 cut-off events. For 153364/158119 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 23104 event pairs, 322 based on Foata normal form. 435/4346 useless extension candidates. Maximal degree in co-relation 36222. Up to 3116 conditions per place. [2021-06-30 12:55:42,602 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 591 selfloop transitions, 61 changer transitions 0/662 dead transitions. [2021-06-30 12:55:42,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 662 transitions, 16333 flow [2021-06-30 12:55:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2021-06-30 12:55:42,603 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.703125 [2021-06-30 12:55:42,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 135 transitions. [2021-06-30 12:55:42,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 135 transitions. [2021-06-30 12:55:42,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:42,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 135 transitions. [2021-06-30 12:55:42,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:42,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:42,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:42,604 INFO L185 Difference]: Start difference. First operand has 236 places, 634 transitions, 14465 flow. Second operand 6 states and 135 transitions. [2021-06-30 12:55:42,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 662 transitions, 16333 flow [2021-06-30 12:55:42,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 662 transitions, 16013 flow, removed 160 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:42,848 INFO L241 Difference]: Finished difference. Result has 244 places, 650 transitions, 14881 flow [2021-06-30 12:55:42,849 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=14145, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=14881, PETRI_PLACES=244, PETRI_TRANSITIONS=650} [2021-06-30 12:55:42,849 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 209 predicate places. [2021-06-30 12:55:42,849 INFO L482 AbstractCegarLoop]: Abstraction has has 244 places, 650 transitions, 14881 flow [2021-06-30 12:55:42,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:42,849 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:42,849 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:42,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-30 12:55:42,849 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:42,850 INFO L82 PathProgramCache]: Analyzing trace with hash 897607844, now seen corresponding path program 13 times [2021-06-30 12:55:42,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:42,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472741222] [2021-06-30 12:55:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:42,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:42,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:42,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:42,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:42,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:42,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:42,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:42,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:42,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:42,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:42,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:42,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:42,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:42,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:42,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:42,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472741222] [2021-06-30 12:55:42,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472741222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:42,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:42,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:55:42,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158286647] [2021-06-30 12:55:42,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:42,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:42,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:42,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:42,900 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:42,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 650 transitions, 14881 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:42,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:42,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:42,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:43,697 INFO L129 PetriNetUnfolder]: 2586/4088 cut-off events. [2021-06-30 12:55:43,697 INFO L130 PetriNetUnfolder]: For 165705/170523 co-relation queries the response was YES. [2021-06-30 12:55:43,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39026 conditions, 4088 events. 2586/4088 cut-off events. For 165705/170523 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 23263 event pairs, 289 based on Foata normal form. 517/4493 useless extension candidates. Maximal degree in co-relation 37682. Up to 2956 conditions per place. [2021-06-30 12:55:43,758 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 548 selfloop transitions, 125 changer transitions 0/683 dead transitions. [2021-06-30 12:55:43,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 683 transitions, 16947 flow [2021-06-30 12:55:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:55:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:55:43,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-06-30 12:55:43,759 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6919642857142857 [2021-06-30 12:55:43,760 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-06-30 12:55:43,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-06-30 12:55:43,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:43,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-06-30 12:55:43,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:43,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:43,763 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:43,763 INFO L185 Difference]: Start difference. First operand has 244 places, 650 transitions, 14881 flow. Second operand 7 states and 155 transitions. [2021-06-30 12:55:43,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 683 transitions, 16947 flow [2021-06-30 12:55:43,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 683 transitions, 16745 flow, removed 101 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:43,987 INFO L241 Difference]: Finished difference. Result has 252 places, 670 transitions, 15713 flow [2021-06-30 12:55:43,987 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=14679, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15713, PETRI_PLACES=252, PETRI_TRANSITIONS=670} [2021-06-30 12:55:43,987 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 217 predicate places. [2021-06-30 12:55:43,987 INFO L482 AbstractCegarLoop]: Abstraction has has 252 places, 670 transitions, 15713 flow [2021-06-30 12:55:43,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:43,987 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:43,987 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:43,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-30 12:55:43,987 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:43,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:43,988 INFO L82 PathProgramCache]: Analyzing trace with hash 682439378, now seen corresponding path program 14 times [2021-06-30 12:55:43,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:43,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85441097] [2021-06-30 12:55:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:43,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:43,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:44,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:44,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:44,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:44,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:44,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:44,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:44,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:44,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:44,029 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:44,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:44,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:44,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85441097] [2021-06-30 12:55:44,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85441097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:44,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:44,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:55:44,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251325864] [2021-06-30 12:55:44,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:44,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:44,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:44,033 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:44,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 670 transitions, 15713 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:44,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:44,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:44,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:44,858 INFO L129 PetriNetUnfolder]: 2652/4211 cut-off events. [2021-06-30 12:55:44,858 INFO L130 PetriNetUnfolder]: For 177956/182807 co-relation queries the response was YES. [2021-06-30 12:55:44,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41059 conditions, 4211 events. 2652/4211 cut-off events. For 177956/182807 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 24363 event pairs, 348 based on Foata normal form. 517/4618 useless extension candidates. Maximal degree in co-relation 39708. Up to 2978 conditions per place. [2021-06-30 12:55:44,927 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 549 selfloop transitions, 145 changer transitions 0/704 dead transitions. [2021-06-30 12:55:44,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 704 transitions, 17885 flow [2021-06-30 12:55:44,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:55:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:55:44,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 12:55:44,928 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 12:55:44,928 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 12:55:44,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 12:55:44,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:44,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 12:55:44,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:44,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:44,929 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:44,929 INFO L185 Difference]: Start difference. First operand has 252 places, 670 transitions, 15713 flow. Second operand 7 states and 156 transitions. [2021-06-30 12:55:44,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 704 transitions, 17885 flow [2021-06-30 12:55:45,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 704 transitions, 17529 flow, removed 162 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:45,254 INFO L241 Difference]: Finished difference. Result has 259 places, 690 transitions, 16520 flow [2021-06-30 12:55:45,255 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=15397, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16520, PETRI_PLACES=259, PETRI_TRANSITIONS=690} [2021-06-30 12:55:45,255 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 224 predicate places. [2021-06-30 12:55:45,255 INFO L482 AbstractCegarLoop]: Abstraction has has 259 places, 690 transitions, 16520 flow [2021-06-30 12:55:45,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:45,255 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:45,255 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:45,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-30 12:55:45,255 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:45,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:45,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1871501252, now seen corresponding path program 15 times [2021-06-30 12:55:45,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:45,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192149262] [2021-06-30 12:55:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:45,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:45,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:45,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:45,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192149262] [2021-06-30 12:55:45,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192149262] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:45,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741786927] [2021-06-30 12:55:45,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:55:45,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-30 12:55:45,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:45,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:55:45,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:45,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:45,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:45,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,386 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:45,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:45,393 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,400 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:45,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:45,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:45,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:45,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741786927] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:45,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:45,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:55:45,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789580477] [2021-06-30 12:55:45,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:45,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:45,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:45,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:45,427 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:45,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 690 transitions, 16520 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:45,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:45,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:45,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:46,364 INFO L129 PetriNetUnfolder]: 2724/4311 cut-off events. [2021-06-30 12:55:46,364 INFO L130 PetriNetUnfolder]: For 193261/198109 co-relation queries the response was YES. [2021-06-30 12:55:46,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42866 conditions, 4311 events. 2724/4311 cut-off events. For 193261/198109 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 24945 event pairs, 346 based on Foata normal form. 517/4718 useless extension candidates. Maximal degree in co-relation 41505. Up to 2692 conditions per place. [2021-06-30 12:55:46,437 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 458 selfloop transitions, 261 changer transitions 0/729 dead transitions. [2021-06-30 12:55:46,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 729 transitions, 18878 flow [2021-06-30 12:55:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:46,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-06-30 12:55:46,439 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-06-30 12:55:46,439 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-06-30 12:55:46,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-06-30 12:55:46,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:46,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-06-30 12:55:46,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:46,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:46,440 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:46,440 INFO L185 Difference]: Start difference. First operand has 259 places, 690 transitions, 16520 flow. Second operand 8 states and 176 transitions. [2021-06-30 12:55:46,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 729 transitions, 18878 flow [2021-06-30 12:55:46,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 729 transitions, 18610 flow, removed 134 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:46,758 INFO L241 Difference]: Finished difference. Result has 267 places, 714 transitions, 17787 flow [2021-06-30 12:55:46,758 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=16252, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17787, PETRI_PLACES=267, PETRI_TRANSITIONS=714} [2021-06-30 12:55:46,759 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 232 predicate places. [2021-06-30 12:55:46,759 INFO L482 AbstractCegarLoop]: Abstraction has has 267 places, 714 transitions, 17787 flow [2021-06-30 12:55:46,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:46,759 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:46,759 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:46,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-06-30 12:55:46,973 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:46,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:46,973 INFO L82 PathProgramCache]: Analyzing trace with hash -665147118, now seen corresponding path program 16 times [2021-06-30 12:55:46,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:46,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974532079] [2021-06-30 12:55:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:46,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:46,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:47,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,057 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:47,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:47,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:47,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:47,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974532079] [2021-06-30 12:55:47,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974532079] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:47,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603613089] [2021-06-30 12:55:47,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-30 12:55:47,088 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-30 12:55:47,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:47,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:55:47,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:47,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:47,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:47,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:47,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:47,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:47,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:47,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:47,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:47,123 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:55:47,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:47,132 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:47,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,135 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:47,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:47,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:55:47,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603613089] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:47,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:47,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:55:47,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806126927] [2021-06-30 12:55:47,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:47,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:47,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:47,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:47,165 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:47,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 714 transitions, 17787 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:47,165 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:47,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:47,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:48,403 INFO L129 PetriNetUnfolder]: 2895/4538 cut-off events. [2021-06-30 12:55:48,403 INFO L130 PetriNetUnfolder]: For 219380/224252 co-relation queries the response was YES. [2021-06-30 12:55:48,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46873 conditions, 4538 events. 2895/4538 cut-off events. For 219380/224252 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 26170 event pairs, 324 based on Foata normal form. 517/4942 useless extension candidates. Maximal degree in co-relation 45506. Up to 3172 conditions per place. [2021-06-30 12:55:48,467 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 576 selfloop transitions, 205 changer transitions 0/791 dead transitions. [2021-06-30 12:55:48,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 791 transitions, 21049 flow [2021-06-30 12:55:48,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:48,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:55:48,468 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:55:48,468 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:55:48,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:55:48,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:48,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:55:48,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:48,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:48,469 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:48,470 INFO L185 Difference]: Start difference. First operand has 267 places, 714 transitions, 17787 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:55:48,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 791 transitions, 21049 flow [2021-06-30 12:55:48,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 791 transitions, 20562 flow, removed 209 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:48,903 INFO L241 Difference]: Finished difference. Result has 279 places, 778 transitions, 19803 flow [2021-06-30 12:55:48,904 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=17348, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19803, PETRI_PLACES=279, PETRI_TRANSITIONS=778} [2021-06-30 12:55:48,904 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 244 predicate places. [2021-06-30 12:55:48,904 INFO L482 AbstractCegarLoop]: Abstraction has has 279 places, 778 transitions, 19803 flow [2021-06-30 12:55:48,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:48,905 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:48,905 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:49,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-06-30 12:55:49,121 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:49,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:49,121 INFO L82 PathProgramCache]: Analyzing trace with hash -904001556, now seen corresponding path program 17 times [2021-06-30 12:55:49,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:49,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879525073] [2021-06-30 12:55:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:49,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:49,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:49,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:49,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:49,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:49,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:49,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:49,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:49,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:49,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:49,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:49,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:49,214 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:49,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:49,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:49,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879525073] [2021-06-30 12:55:49,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879525073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:49,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:49,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:55:49,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874423840] [2021-06-30 12:55:49,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:49,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:49,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:49,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:49,220 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:49,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 778 transitions, 19803 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:49,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:49,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:49,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:50,419 INFO L129 PetriNetUnfolder]: 3177/5006 cut-off events. [2021-06-30 12:55:50,419 INFO L130 PetriNetUnfolder]: For 252018/256923 co-relation queries the response was YES. [2021-06-30 12:55:50,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52759 conditions, 5006 events. 3177/5006 cut-off events. For 252018/256923 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 29566 event pairs, 428 based on Foata normal form. 435/5331 useless extension candidates. Maximal degree in co-relation 51378. Up to 3672 conditions per place. [2021-06-30 12:55:50,527 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 692 selfloop transitions, 189 changer transitions 0/891 dead transitions. [2021-06-30 12:55:50,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 891 transitions, 24563 flow [2021-06-30 12:55:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:50,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:55:50,528 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:55:50,528 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:55:50,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:55:50,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:50,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:55:50,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:50,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:50,529 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:50,529 INFO L185 Difference]: Start difference. First operand has 279 places, 778 transitions, 19803 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:55:50,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 891 transitions, 24563 flow [2021-06-30 12:55:51,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 891 transitions, 23877 flow, removed 316 selfloop flow, removed 1 redundant places. [2021-06-30 12:55:51,074 INFO L241 Difference]: Finished difference. Result has 291 places, 878 transitions, 22914 flow [2021-06-30 12:55:51,075 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=19399, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=778, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22914, PETRI_PLACES=291, PETRI_TRANSITIONS=878} [2021-06-30 12:55:51,075 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 256 predicate places. [2021-06-30 12:55:51,075 INFO L482 AbstractCegarLoop]: Abstraction has has 291 places, 878 transitions, 22914 flow [2021-06-30 12:55:51,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:51,076 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:51,076 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:51,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-30 12:55:51,076 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:51,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:51,076 INFO L82 PathProgramCache]: Analyzing trace with hash -597527392, now seen corresponding path program 18 times [2021-06-30 12:55:51,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:51,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753938526] [2021-06-30 12:55:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:51,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:51,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:51,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:51,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:51,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:51,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:51,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:55:51,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:51,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:51,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:51,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:51,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:51,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:51,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:51,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753938526] [2021-06-30 12:55:51,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753938526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:51,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:51,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:55:51,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846639824] [2021-06-30 12:55:51,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:55:51,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:51,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:55:51,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:55:51,137 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:51,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 878 transitions, 22914 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:51,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:51,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:51,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:52,696 INFO L129 PetriNetUnfolder]: 3465/5449 cut-off events. [2021-06-30 12:55:52,696 INFO L130 PetriNetUnfolder]: For 290867/295830 co-relation queries the response was YES. [2021-06-30 12:55:52,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58849 conditions, 5449 events. 3465/5449 cut-off events. For 290867/295830 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 32524 event pairs, 444 based on Foata normal form. 435/5777 useless extension candidates. Maximal degree in co-relation 57454. Up to 4027 conditions per place. [2021-06-30 12:55:52,978 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 775 selfloop transitions, 209 changer transitions 0/994 dead transitions. [2021-06-30 12:55:52,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 994 transitions, 28048 flow [2021-06-30 12:55:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:55:52,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:55:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-06-30 12:55:52,979 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67578125 [2021-06-30 12:55:52,979 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-06-30 12:55:52,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-06-30 12:55:52,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:52,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-06-30 12:55:52,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:52,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:52,980 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:52,980 INFO L185 Difference]: Start difference. First operand has 291 places, 878 transitions, 22914 flow. Second operand 8 states and 173 transitions. [2021-06-30 12:55:52,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 994 transitions, 28048 flow [2021-06-30 12:55:53,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 994 transitions, 27314 flow, removed 367 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:53,471 INFO L241 Difference]: Finished difference. Result has 304 places, 982 transitions, 26242 flow [2021-06-30 12:55:53,472 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=22490, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=26242, PETRI_PLACES=304, PETRI_TRANSITIONS=982} [2021-06-30 12:55:53,472 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 269 predicate places. [2021-06-30 12:55:53,472 INFO L482 AbstractCegarLoop]: Abstraction has has 304 places, 982 transitions, 26242 flow [2021-06-30 12:55:53,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:53,473 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:53,473 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:53,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-30 12:55:53,473 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:53,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:53,473 INFO L82 PathProgramCache]: Analyzing trace with hash 156039890, now seen corresponding path program 1 times [2021-06-30 12:55:53,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:53,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255458725] [2021-06-30 12:55:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:53,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:53,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:53,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:53,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:53,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:53,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:53,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:53,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:53,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:53,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:53,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:53,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:53,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:53,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:55:53,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:53,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255458725] [2021-06-30 12:55:53,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255458725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:55:53,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:55:53,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:55:53,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83088595] [2021-06-30 12:55:53,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:55:53,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:53,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:55:53,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:55:53,514 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:53,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 982 transitions, 26242 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:53,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:53,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:53,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:55:56,116 INFO L129 PetriNetUnfolder]: 5490/9007 cut-off events. [2021-06-30 12:55:56,116 INFO L130 PetriNetUnfolder]: For 383923/383981 co-relation queries the response was YES. [2021-06-30 12:55:56,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87956 conditions, 9007 events. 5490/9007 cut-off events. For 383923/383981 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 62401 event pairs, 609 based on Foata normal form. 28/8598 useless extension candidates. Maximal degree in co-relation 86743. Up to 6958 conditions per place. [2021-06-30 12:55:56,381 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 920 selfloop transitions, 81 changer transitions 0/1011 dead transitions. [2021-06-30 12:55:56,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 1011 transitions, 28972 flow [2021-06-30 12:55:56,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:55:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:55:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2021-06-30 12:55:56,382 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-06-30 12:55:56,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 136 transitions. [2021-06-30 12:55:56,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 136 transitions. [2021-06-30 12:55:56,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:55:56,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 136 transitions. [2021-06-30 12:55:56,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:56,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:56,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:56,383 INFO L185 Difference]: Start difference. First operand has 304 places, 982 transitions, 26242 flow. Second operand 6 states and 136 transitions. [2021-06-30 12:55:56,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 1011 transitions, 28972 flow [2021-06-30 12:55:57,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 1011 transitions, 28524 flow, removed 224 selfloop flow, removed 0 redundant places. [2021-06-30 12:55:57,377 INFO L241 Difference]: Finished difference. Result has 313 places, 998 transitions, 26787 flow [2021-06-30 12:55:57,378 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=25794, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=910, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=26787, PETRI_PLACES=313, PETRI_TRANSITIONS=998} [2021-06-30 12:55:57,378 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 278 predicate places. [2021-06-30 12:55:57,378 INFO L482 AbstractCegarLoop]: Abstraction has has 313 places, 998 transitions, 26787 flow [2021-06-30 12:55:57,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:57,378 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:55:57,378 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:55:57,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-30 12:55:57,378 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:55:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:55:57,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1983235400, now seen corresponding path program 2 times [2021-06-30 12:55:57,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:55:57,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105720475] [2021-06-30 12:55:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:55:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:55:57,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:57,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,422 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:55:57,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:55:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:57,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:55:57,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105720475] [2021-06-30 12:55:57,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105720475] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:57,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908121073] [2021-06-30 12:55:57,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:55:57,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 12:55:57,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:55:57,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:55:57,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:55:57,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:57,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:57,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:57,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:55:57,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,493 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:57,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:57,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:57,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:57,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:55:57,523 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:55:57,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,540 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:55:57,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:55:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:55:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:55:57,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908121073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:55:57,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:55:57,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 12:55:57,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846551680] [2021-06-30 12:55:57,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:55:57,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:55:57,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:55:57,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:55:57,552 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:55:57,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 998 transitions, 26787 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:55:57,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:55:57,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:55:57,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:00,190 INFO L129 PetriNetUnfolder]: 5556/9096 cut-off events. [2021-06-30 12:56:00,191 INFO L130 PetriNetUnfolder]: For 397233/397291 co-relation queries the response was YES. [2021-06-30 12:56:00,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89502 conditions, 9096 events. 5556/9096 cut-off events. For 397233/397291 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 62894 event pairs, 618 based on Foata normal form. 28/8686 useless extension candidates. Maximal degree in co-relation 88004. Up to 6885 conditions per place. [2021-06-30 12:56:00,351 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 893 selfloop transitions, 129 changer transitions 0/1032 dead transitions. [2021-06-30 12:56:00,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 1032 transitions, 29739 flow [2021-06-30 12:56:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:56:00,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:56:00,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 12:56:00,352 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 12:56:00,352 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 12:56:00,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 12:56:00,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:00,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 12:56:00,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:00,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:00,353 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:00,353 INFO L185 Difference]: Start difference. First operand has 313 places, 998 transitions, 26787 flow. Second operand 7 states and 156 transitions. [2021-06-30 12:56:00,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 1032 transitions, 29739 flow [2021-06-30 12:56:01,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1032 transitions, 29493 flow, removed 123 selfloop flow, removed 0 redundant places. [2021-06-30 12:56:01,575 INFO L241 Difference]: Finished difference. Result has 321 places, 1018 transitions, 27785 flow [2021-06-30 12:56:01,575 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=26541, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=882, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27785, PETRI_PLACES=321, PETRI_TRANSITIONS=1018} [2021-06-30 12:56:01,576 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 286 predicate places. [2021-06-30 12:56:01,576 INFO L482 AbstractCegarLoop]: Abstraction has has 321 places, 1018 transitions, 27785 flow [2021-06-30 12:56:01,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:01,576 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:01,576 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:01,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:56:01,777 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:01,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:01,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1772671188, now seen corresponding path program 3 times [2021-06-30 12:56:01,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:01,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954135442] [2021-06-30 12:56:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:01,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:01,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:01,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:01,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:01,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:01,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:01,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:01,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:01,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:01,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:01,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:01,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:01,820 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:01,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:01,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:01,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954135442] [2021-06-30 12:56:01,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954135442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:01,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:01,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:56:01,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897036851] [2021-06-30 12:56:01,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:56:01,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:01,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:56:01,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:56:01,824 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:01,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 1018 transitions, 27785 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:01,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:01,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:01,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:04,548 INFO L129 PetriNetUnfolder]: 5610/9154 cut-off events. [2021-06-30 12:56:04,549 INFO L130 PetriNetUnfolder]: For 415967/416025 co-relation queries the response was YES. [2021-06-30 12:56:04,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91438 conditions, 9154 events. 5610/9154 cut-off events. For 415967/416025 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 63132 event pairs, 589 based on Foata normal form. 28/8749 useless extension candidates. Maximal degree in co-relation 89891. Up to 7240 conditions per place. [2021-06-30 12:56:04,820 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 975 selfloop transitions, 61 changer transitions 0/1046 dead transitions. [2021-06-30 12:56:04,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1046 transitions, 30625 flow [2021-06-30 12:56:04,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:56:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:56:04,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2021-06-30 12:56:04,821 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.703125 [2021-06-30 12:56:04,821 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 135 transitions. [2021-06-30 12:56:04,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 135 transitions. [2021-06-30 12:56:04,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:04,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 135 transitions. [2021-06-30 12:56:04,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:04,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:04,821 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:04,821 INFO L185 Difference]: Start difference. First operand has 321 places, 1018 transitions, 27785 flow. Second operand 6 states and 135 transitions. [2021-06-30 12:56:04,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1046 transitions, 30625 flow [2021-06-30 12:56:05,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1046 transitions, 30122 flow, removed 213 selfloop flow, removed 2 redundant places. [2021-06-30 12:56:05,809 INFO L241 Difference]: Finished difference. Result has 327 places, 1034 transitions, 28222 flow [2021-06-30 12:56:05,810 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=27314, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=28222, PETRI_PLACES=327, PETRI_TRANSITIONS=1034} [2021-06-30 12:56:05,810 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 292 predicate places. [2021-06-30 12:56:05,810 INFO L482 AbstractCegarLoop]: Abstraction has has 327 places, 1034 transitions, 28222 flow [2021-06-30 12:56:05,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:05,811 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:05,811 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:05,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-30 12:56:05,811 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash 361519562, now seen corresponding path program 4 times [2021-06-30 12:56:05,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:05,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868480424] [2021-06-30 12:56:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:05,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:05,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:05,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:05,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:05,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:05,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:05,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:05,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:05,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:05,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:05,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:05,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:05,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:05,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:05,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:05,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868480424] [2021-06-30 12:56:05,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868480424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:05,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:05,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:56:05,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190833963] [2021-06-30 12:56:05,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:56:05,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:05,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:56:05,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:56:05,902 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:05,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1034 transitions, 28222 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:05,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:05,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:05,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:08,854 INFO L129 PetriNetUnfolder]: 5670/9236 cut-off events. [2021-06-30 12:56:08,854 INFO L130 PetriNetUnfolder]: For 426298/426356 co-relation queries the response was YES. [2021-06-30 12:56:08,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92485 conditions, 9236 events. 5670/9236 cut-off events. For 426298/426356 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 63621 event pairs, 596 based on Foata normal form. 28/8832 useless extension candidates. Maximal degree in co-relation 90936. Up to 7209 conditions per place. [2021-06-30 12:56:09,006 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 960 selfloop transitions, 97 changer transitions 0/1067 dead transitions. [2021-06-30 12:56:09,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 1067 transitions, 31256 flow [2021-06-30 12:56:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:56:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:56:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-06-30 12:56:09,008 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6919642857142857 [2021-06-30 12:56:09,008 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-06-30 12:56:09,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-06-30 12:56:09,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:09,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-06-30 12:56:09,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:09,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:09,009 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:09,009 INFO L185 Difference]: Start difference. First operand has 327 places, 1034 transitions, 28222 flow. Second operand 7 states and 155 transitions. [2021-06-30 12:56:09,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 1067 transitions, 31256 flow [2021-06-30 12:56:10,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 1067 transitions, 31002 flow, removed 127 selfloop flow, removed 0 redundant places. [2021-06-30 12:56:10,043 INFO L241 Difference]: Finished difference. Result has 335 places, 1054 transitions, 29130 flow [2021-06-30 12:56:10,043 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=27968, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1034, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=950, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29130, PETRI_PLACES=335, PETRI_TRANSITIONS=1054} [2021-06-30 12:56:10,043 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 300 predicate places. [2021-06-30 12:56:10,043 INFO L482 AbstractCegarLoop]: Abstraction has has 335 places, 1054 transitions, 29130 flow [2021-06-30 12:56:10,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:10,044 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:10,044 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:10,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-30 12:56:10,044 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:10,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:10,044 INFO L82 PathProgramCache]: Analyzing trace with hash -528134482, now seen corresponding path program 5 times [2021-06-30 12:56:10,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:10,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30981946] [2021-06-30 12:56:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:10,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:10,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:10,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:10,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:10,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:10,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:10,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:10,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:10,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:10,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:10,087 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:10,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:10,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:10,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30981946] [2021-06-30 12:56:10,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30981946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:10,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:10,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:56:10,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576806852] [2021-06-30 12:56:10,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:56:10,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:10,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:56:10,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:56:10,092 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:10,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 1054 transitions, 29130 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:10,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:10,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:10,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:13,181 INFO L129 PetriNetUnfolder]: 5736/9381 cut-off events. [2021-06-30 12:56:13,181 INFO L130 PetriNetUnfolder]: For 444035/444093 co-relation queries the response was YES. [2021-06-30 12:56:13,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94632 conditions, 9381 events. 5736/9381 cut-off events. For 444035/444093 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 65321 event pairs, 525 based on Foata normal form. 28/8964 useless extension candidates. Maximal degree in co-relation 93080. Up to 7026 conditions per place. [2021-06-30 12:56:13,337 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 934 selfloop transitions, 145 changer transitions 0/1089 dead transitions. [2021-06-30 12:56:13,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 1089 transitions, 32295 flow [2021-06-30 12:56:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:56:13,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:56:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-06-30 12:56:13,338 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2021-06-30 12:56:13,338 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-06-30 12:56:13,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-06-30 12:56:13,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:13,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-06-30 12:56:13,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:13,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:13,338 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:13,338 INFO L185 Difference]: Start difference. First operand has 335 places, 1054 transitions, 29130 flow. Second operand 7 states and 157 transitions. [2021-06-30 12:56:13,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 1089 transitions, 32295 flow [2021-06-30 12:56:14,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1089 transitions, 31790 flow, removed 223 selfloop flow, removed 2 redundant places. [2021-06-30 12:56:14,422 INFO L241 Difference]: Finished difference. Result has 341 places, 1074 transitions, 30008 flow [2021-06-30 12:56:14,423 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=28665, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=922, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=30008, PETRI_PLACES=341, PETRI_TRANSITIONS=1074} [2021-06-30 12:56:14,423 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 306 predicate places. [2021-06-30 12:56:14,423 INFO L482 AbstractCegarLoop]: Abstraction has has 341 places, 1074 transitions, 30008 flow [2021-06-30 12:56:14,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:14,423 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:14,424 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:14,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-30 12:56:14,424 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1974642986, now seen corresponding path program 6 times [2021-06-30 12:56:14,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:14,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205316863] [2021-06-30 12:56:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:14,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:14,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:14,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:14,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:14,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:14,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:14,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:14,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:14,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:14,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:14,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:14,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:14,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:14,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:14,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:14,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205316863] [2021-06-30 12:56:14,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205316863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:14,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:14,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:56:14,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053641773] [2021-06-30 12:56:14,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:56:14,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:14,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:56:14,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:56:14,477 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:14,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 1074 transitions, 30008 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:14,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:14,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:14,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:17,355 INFO L129 PetriNetUnfolder]: 5808/9493 cut-off events. [2021-06-30 12:56:17,355 INFO L130 PetriNetUnfolder]: For 461120/461178 co-relation queries the response was YES. [2021-06-30 12:56:17,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96656 conditions, 9493 events. 5808/9493 cut-off events. For 461120/461178 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 66105 event pairs, 542 based on Foata normal form. 28/9076 useless extension candidates. Maximal degree in co-relation 95103. Up to 6879 conditions per place. [2021-06-30 12:56:17,682 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 887 selfloop transitions, 217 changer transitions 0/1114 dead transitions. [2021-06-30 12:56:17,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 1114 transitions, 33387 flow [2021-06-30 12:56:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:56:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:56:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2021-06-30 12:56:17,683 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.69140625 [2021-06-30 12:56:17,683 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 177 transitions. [2021-06-30 12:56:17,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 177 transitions. [2021-06-30 12:56:17,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:17,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 177 transitions. [2021-06-30 12:56:17,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:17,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:17,684 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:17,685 INFO L185 Difference]: Start difference. First operand has 341 places, 1074 transitions, 30008 flow. Second operand 8 states and 177 transitions. [2021-06-30 12:56:17,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 1114 transitions, 33387 flow [2021-06-30 12:56:18,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 1114 transitions, 33043 flow, removed 172 selfloop flow, removed 0 redundant places. [2021-06-30 12:56:19,013 INFO L241 Difference]: Finished difference. Result has 349 places, 1098 transitions, 31342 flow [2021-06-30 12:56:19,014 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=29664, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=874, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=31342, PETRI_PLACES=349, PETRI_TRANSITIONS=1098} [2021-06-30 12:56:19,014 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 314 predicate places. [2021-06-30 12:56:19,014 INFO L482 AbstractCegarLoop]: Abstraction has has 349 places, 1098 transitions, 31342 flow [2021-06-30 12:56:19,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:19,014 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:19,014 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:19,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-30 12:56:19,014 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:19,015 INFO L82 PathProgramCache]: Analyzing trace with hash 8889272, now seen corresponding path program 7 times [2021-06-30 12:56:19,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:19,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119678155] [2021-06-30 12:56:19,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:19,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:19,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:19,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:19,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:19,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:19,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:19,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:19,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:19,070 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:19,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:19,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:19,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119678155] [2021-06-30 12:56:19,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119678155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:19,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:19,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:56:19,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840673610] [2021-06-30 12:56:19,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:56:19,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:19,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:56:19,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:56:19,082 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:19,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1098 transitions, 31342 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:19,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:19,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:19,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:22,629 INFO L129 PetriNetUnfolder]: 5865/9576 cut-off events. [2021-06-30 12:56:22,630 INFO L130 PetriNetUnfolder]: For 487150/487208 co-relation queries the response was YES. [2021-06-30 12:56:22,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99103 conditions, 9576 events. 5865/9576 cut-off events. For 487150/487208 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 66761 event pairs, 511 based on Foata normal form. 28/9161 useless extension candidates. Maximal degree in co-relation 97548. Up to 7445 conditions per place. [2021-06-30 12:56:22,852 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1040 selfloop transitions, 81 changer transitions 0/1131 dead transitions. [2021-06-30 12:56:22,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1131 transitions, 34587 flow [2021-06-30 12:56:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:56:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:56:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-06-30 12:56:22,854 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6919642857142857 [2021-06-30 12:56:22,854 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-06-30 12:56:22,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-06-30 12:56:22,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:22,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-06-30 12:56:22,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:22,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:22,856 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:22,856 INFO L185 Difference]: Start difference. First operand has 349 places, 1098 transitions, 31342 flow. Second operand 7 states and 155 transitions. [2021-06-30 12:56:22,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 1131 transitions, 34587 flow [2021-06-30 12:56:24,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 1131 transitions, 33915 flow, removed 270 selfloop flow, removed 2 redundant places. [2021-06-30 12:56:24,226 INFO L241 Difference]: Finished difference. Result has 355 places, 1118 transitions, 31865 flow [2021-06-30 12:56:24,227 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=30710, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1098, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1030, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31865, PETRI_PLACES=355, PETRI_TRANSITIONS=1118} [2021-06-30 12:56:24,227 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 320 predicate places. [2021-06-30 12:56:24,227 INFO L482 AbstractCegarLoop]: Abstraction has has 355 places, 1118 transitions, 31865 flow [2021-06-30 12:56:24,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:24,228 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:24,228 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:24,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-30 12:56:24,228 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:24,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:24,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1211990574, now seen corresponding path program 8 times [2021-06-30 12:56:24,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:24,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480276853] [2021-06-30 12:56:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:24,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:24,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,294 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:24,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:56:24,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:24,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480276853] [2021-06-30 12:56:24,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480276853] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:56:24,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142701238] [2021-06-30 12:56:24,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:56:24,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 12:56:24,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:56:24,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:56:24,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:56:24,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:24,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:24,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:24,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:24,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:24,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:24,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:24,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:24,368 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:56:24,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:24,372 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:56:24,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,390 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:56:24,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:24,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:24,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:56:24,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142701238] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:56:24,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:56:24,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:56:24,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470502366] [2021-06-30 12:56:24,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:56:24,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:24,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:56:24,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:56:24,397 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:24,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 1118 transitions, 31865 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:24,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:24,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:24,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:27,750 INFO L129 PetriNetUnfolder]: 6129/9948 cut-off events. [2021-06-30 12:56:27,750 INFO L130 PetriNetUnfolder]: For 528852/528910 co-relation queries the response was YES. [2021-06-30 12:56:27,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104017 conditions, 9948 events. 6129/9948 cut-off events. For 528852/528910 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 69080 event pairs, 663 based on Foata normal form. 28/9543 useless extension candidates. Maximal degree in co-relation 102461. Up to 7712 conditions per place. [2021-06-30 12:56:27,975 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1060 selfloop transitions, 149 changer transitions 0/1219 dead transitions. [2021-06-30 12:56:27,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1219 transitions, 37494 flow [2021-06-30 12:56:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:56:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:56:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:56:27,976 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:56:27,976 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:56:27,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:56:27,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:27,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:56:27,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:27,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:27,977 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:27,977 INFO L185 Difference]: Start difference. First operand has 355 places, 1118 transitions, 31865 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:56:27,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1219 transitions, 37494 flow [2021-06-30 12:56:29,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 1219 transitions, 36868 flow, removed 313 selfloop flow, removed 0 redundant places. [2021-06-30 12:56:29,330 INFO L241 Difference]: Finished difference. Result has 368 places, 1206 transitions, 35085 flow [2021-06-30 12:56:29,331 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=31507, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35085, PETRI_PLACES=368, PETRI_TRANSITIONS=1206} [2021-06-30 12:56:29,331 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 333 predicate places. [2021-06-30 12:56:29,331 INFO L482 AbstractCegarLoop]: Abstraction has has 368 places, 1206 transitions, 35085 flow [2021-06-30 12:56:29,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:29,332 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:29,332 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:29,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:56:29,533 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:29,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:29,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1699086776, now seen corresponding path program 9 times [2021-06-30 12:56:29,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:29,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006051908] [2021-06-30 12:56:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:29,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:29,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:29,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:29,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:29,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:29,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:29,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:29,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:29,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:29,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:29,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:29,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:29,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:29,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:29,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:29,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006051908] [2021-06-30 12:56:29,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006051908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:29,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:29,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:56:29,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741432358] [2021-06-30 12:56:29,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:56:29,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:29,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:56:29,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:56:29,600 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:29,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 1206 transitions, 35085 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:29,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:29,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:29,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:33,259 INFO L129 PetriNetUnfolder]: 6249/10127 cut-off events. [2021-06-30 12:56:33,260 INFO L130 PetriNetUnfolder]: For 564536/564594 co-relation queries the response was YES. [2021-06-30 12:56:33,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108117 conditions, 10127 events. 6249/10127 cut-off events. For 564536/564594 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 70312 event pairs, 685 based on Foata normal form. 28/9722 useless extension candidates. Maximal degree in co-relation 106554. Up to 7836 conditions per place. [2021-06-30 12:56:33,557 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1096 selfloop transitions, 157 changer transitions 0/1263 dead transitions. [2021-06-30 12:56:33,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1263 transitions, 39809 flow [2021-06-30 12:56:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:56:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:56:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:56:33,573 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:56:33,573 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:56:33,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:56:33,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:33,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:56:33,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:33,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:33,574 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:33,574 INFO L185 Difference]: Start difference. First operand has 368 places, 1206 transitions, 35085 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:56:33,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1263 transitions, 39809 flow [2021-06-30 12:56:35,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 1263 transitions, 38875 flow, removed 467 selfloop flow, removed 0 redundant places. [2021-06-30 12:56:35,173 INFO L241 Difference]: Finished difference. Result has 380 places, 1250 transitions, 36925 flow [2021-06-30 12:56:35,174 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=34545, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36925, PETRI_PLACES=380, PETRI_TRANSITIONS=1250} [2021-06-30 12:56:35,175 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 345 predicate places. [2021-06-30 12:56:35,175 INFO L482 AbstractCegarLoop]: Abstraction has has 380 places, 1250 transitions, 36925 flow [2021-06-30 12:56:35,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:35,175 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:35,175 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:35,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-30 12:56:35,175 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:35,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1918826896, now seen corresponding path program 10 times [2021-06-30 12:56:35,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:35,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97193063] [2021-06-30 12:56:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:35,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:35,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,257 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:35,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:56:35,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:35,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97193063] [2021-06-30 12:56:35,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97193063] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:56:35,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140030893] [2021-06-30 12:56:35,260 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-30 12:56:35,284 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-30 12:56:35,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:56:35,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:56:35,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:56:35,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:35,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:35,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:35,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:35,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:35,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:35,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:35,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:56:35,330 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:56:35,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:35,337 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:56:35,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,340 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:56:35,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:35,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:56:35,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140030893] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:56:35,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:56:35,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:56:35,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536645512] [2021-06-30 12:56:35,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:56:35,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:35,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:56:35,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:56:35,355 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:35,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1250 transitions, 36925 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:35,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:35,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:35,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:39,451 INFO L129 PetriNetUnfolder]: 6477/10489 cut-off events. [2021-06-30 12:56:39,451 INFO L130 PetriNetUnfolder]: For 625222/625280 co-relation queries the response was YES. [2021-06-30 12:56:39,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113886 conditions, 10489 events. 6477/10489 cut-off events. For 625222/625280 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 73118 event pairs, 594 based on Foata normal form. 28/10073 useless extension candidates. Maximal degree in co-relation 112317. Up to 7984 conditions per place. [2021-06-30 12:56:39,818 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1145 selfloop transitions, 189 changer transitions 0/1344 dead transitions. [2021-06-30 12:56:39,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1344 transitions, 42715 flow [2021-06-30 12:56:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:56:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:56:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-06-30 12:56:39,819 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.68359375 [2021-06-30 12:56:39,819 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-06-30 12:56:39,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-06-30 12:56:39,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:39,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-06-30 12:56:39,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:39,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:39,821 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:39,821 INFO L185 Difference]: Start difference. First operand has 380 places, 1250 transitions, 36925 flow. Second operand 8 states and 175 transitions. [2021-06-30 12:56:39,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1344 transitions, 42715 flow [2021-06-30 12:56:41,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1344 transitions, 42125 flow, removed 273 selfloop flow, removed 1 redundant places. [2021-06-30 12:56:41,449 INFO L241 Difference]: Finished difference. Result has 392 places, 1330 transitions, 40228 flow [2021-06-30 12:56:41,450 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=36335, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1078, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=40228, PETRI_PLACES=392, PETRI_TRANSITIONS=1330} [2021-06-30 12:56:41,450 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 357 predicate places. [2021-06-30 12:56:41,450 INFO L482 AbstractCegarLoop]: Abstraction has has 392 places, 1330 transitions, 40228 flow [2021-06-30 12:56:41,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:41,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:41,450 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:41,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-06-30 12:56:41,652 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:41,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:41,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1179619092, now seen corresponding path program 11 times [2021-06-30 12:56:41,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:41,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621658552] [2021-06-30 12:56:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:41,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:41,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:56:41,716 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:41,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621658552] [2021-06-30 12:56:41,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621658552] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:56:41,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272702104] [2021-06-30 12:56:41,717 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-30 12:56:41,773 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-30 12:56:41,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:56:41,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:56:41,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:56:41,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:41,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:41,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:41,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:56:41,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:41,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:41,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:41,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:41,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:56:41,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,812 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:56:41,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,831 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:56:41,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:41,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:56:41,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272702104] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:56:41,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:56:41,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 12:56:41,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638434744] [2021-06-30 12:56:41,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:56:41,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:41,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:56:41,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:56:41,847 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:41,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1330 transitions, 40228 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:41,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:41,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:41,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:46,364 INFO L129 PetriNetUnfolder]: 6573/10687 cut-off events. [2021-06-30 12:56:46,364 INFO L130 PetriNetUnfolder]: For 635017/635075 co-relation queries the response was YES. [2021-06-30 12:56:46,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116966 conditions, 10687 events. 6573/10687 cut-off events. For 635017/635075 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 75080 event pairs, 797 based on Foata normal form. 28/10279 useless extension candidates. Maximal degree in co-relation 115391. Up to 8500 conditions per place. [2021-06-30 12:56:46,583 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1299 selfloop transitions, 61 changer transitions 0/1370 dead transitions. [2021-06-30 12:56:46,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1370 transitions, 44086 flow [2021-06-30 12:56:46,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:56:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:56:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2021-06-30 12:56:46,584 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.703125 [2021-06-30 12:56:46,584 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 135 transitions. [2021-06-30 12:56:46,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 135 transitions. [2021-06-30 12:56:46,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:46,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 135 transitions. [2021-06-30 12:56:46,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:46,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:46,585 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:46,585 INFO L185 Difference]: Start difference. First operand has 392 places, 1330 transitions, 40228 flow. Second operand 6 states and 135 transitions. [2021-06-30 12:56:46,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1370 transitions, 44086 flow [2021-06-30 12:56:48,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1370 transitions, 43521 flow, removed 261 selfloop flow, removed 1 redundant places. [2021-06-30 12:56:48,502 INFO L241 Difference]: Finished difference. Result has 400 places, 1358 transitions, 41021 flow [2021-06-30 12:56:48,503 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=39663, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=41021, PETRI_PLACES=400, PETRI_TRANSITIONS=1358} [2021-06-30 12:56:48,503 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 365 predicate places. [2021-06-30 12:56:48,504 INFO L482 AbstractCegarLoop]: Abstraction has has 400 places, 1358 transitions, 41021 flow [2021-06-30 12:56:48,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:48,504 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:48,504 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:48,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-06-30 12:56:48,705 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1846815722, now seen corresponding path program 12 times [2021-06-30 12:56:48,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:48,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913436176] [2021-06-30 12:56:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:48,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:48,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:48,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:48,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:48,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:48,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:48,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:48,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:48,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:48,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:48,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:48,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:48,757 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:48,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:48,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:48,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913436176] [2021-06-30 12:56:48,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913436176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:48,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:48,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:56:48,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986088341] [2021-06-30 12:56:48,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:56:48,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:48,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:56:48,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:56:48,761 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:48,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 1358 transitions, 41021 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:48,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:48,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:48,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:56:53,287 INFO L129 PetriNetUnfolder]: 6681/10830 cut-off events. [2021-06-30 12:56:53,287 INFO L130 PetriNetUnfolder]: For 672075/672133 co-relation queries the response was YES. [2021-06-30 12:56:53,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119876 conditions, 10830 events. 6681/10830 cut-off events. For 672075/672133 co-relation queries the response was YES. Maximal size of possible extension queue 794. Compared 76077 event pairs, 652 based on Foata normal form. 28/10415 useless extension candidates. Maximal degree in co-relation 118297. Up to 8404 conditions per place. [2021-06-30 12:56:53,504 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1273 selfloop transitions, 125 changer transitions 0/1408 dead transitions. [2021-06-30 12:56:53,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1408 transitions, 45538 flow [2021-06-30 12:56:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:56:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:56:53,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 12:56:53,505 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 12:56:53,505 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 12:56:53,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 12:56:53,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:56:53,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 12:56:53,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:53,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:53,505 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:53,505 INFO L185 Difference]: Start difference. First operand has 400 places, 1358 transitions, 41021 flow. Second operand 7 states and 156 transitions. [2021-06-30 12:56:53,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1408 transitions, 45538 flow [2021-06-30 12:56:55,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1408 transitions, 45228 flow, removed 155 selfloop flow, removed 0 redundant places. [2021-06-30 12:56:55,469 INFO L241 Difference]: Finished difference. Result has 410 places, 1394 transitions, 42854 flow [2021-06-30 12:56:55,470 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=40711, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=42854, PETRI_PLACES=410, PETRI_TRANSITIONS=1394} [2021-06-30 12:56:55,470 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 375 predicate places. [2021-06-30 12:56:55,470 INFO L482 AbstractCegarLoop]: Abstraction has has 410 places, 1394 transitions, 42854 flow [2021-06-30 12:56:55,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:55,470 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:56:55,470 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:56:55,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-30 12:56:55,470 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:56:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:56:55,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1631861214, now seen corresponding path program 13 times [2021-06-30 12:56:55,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:56:55,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594516632] [2021-06-30 12:56:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:56:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:56:55,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:55,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:55,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:55,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:55,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:56:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:56:55,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:56:55,522 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:56:55,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:56:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:56:55,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:56:55,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594516632] [2021-06-30 12:56:55,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594516632] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:56:55,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:56:55,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 12:56:55,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910441667] [2021-06-30 12:56:55,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:56:55,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:56:55,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:56:55,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:56:55,527 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:56:55,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1394 transitions, 42854 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:56:55,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:56:55,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:56:55,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:00,133 INFO L129 PetriNetUnfolder]: 6747/10959 cut-off events. [2021-06-30 12:57:00,133 INFO L130 PetriNetUnfolder]: For 693659/693717 co-relation queries the response was YES. [2021-06-30 12:57:00,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122718 conditions, 10959 events. 6747/10959 cut-off events. For 693659/693717 co-relation queries the response was YES. Maximal size of possible extension queue 809. Compared 77241 event pairs, 838 based on Foata normal form. 28/10548 useless extension candidates. Maximal degree in co-relation 121134. Up to 8426 conditions per place. [2021-06-30 12:57:00,366 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1273 selfloop transitions, 145 changer transitions 0/1428 dead transitions. [2021-06-30 12:57:00,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1428 transitions, 46914 flow [2021-06-30 12:57:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:57:00,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:57:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 12:57:00,378 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 12:57:00,378 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 12:57:00,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 12:57:00,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:00,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 12:57:00,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:00,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:00,379 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:00,380 INFO L185 Difference]: Start difference. First operand has 410 places, 1394 transitions, 42854 flow. Second operand 7 states and 156 transitions. [2021-06-30 12:57:00,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1428 transitions, 46914 flow [2021-06-30 12:57:02,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1428 transitions, 46458 flow, removed 228 selfloop flow, removed 0 redundant places. [2021-06-30 12:57:02,517 INFO L241 Difference]: Finished difference. Result has 418 places, 1414 transitions, 44001 flow [2021-06-30 12:57:02,519 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=42434, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=44001, PETRI_PLACES=418, PETRI_TRANSITIONS=1414} [2021-06-30 12:57:02,519 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 383 predicate places. [2021-06-30 12:57:02,519 INFO L482 AbstractCegarLoop]: Abstraction has has 418 places, 1414 transitions, 44001 flow [2021-06-30 12:57:02,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:02,519 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:02,519 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:02,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-30 12:57:02,519 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:02,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:02,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1619559910, now seen corresponding path program 14 times [2021-06-30 12:57:02,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:02,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228573081] [2021-06-30 12:57:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:02,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:02,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:02,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:02,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:02,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:02,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:02,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:02,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:02,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:02,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:02,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:02,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:57:02,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:02,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228573081] [2021-06-30 12:57:02,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228573081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:57:02,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:57:02,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:57:02,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250297945] [2021-06-30 12:57:02,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:57:02,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:02,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:57:02,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:57:02,570 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:02,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 1414 transitions, 44001 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:02,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:02,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:02,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:07,236 INFO L129 PetriNetUnfolder]: 6819/11061 cut-off events. [2021-06-30 12:57:07,236 INFO L130 PetriNetUnfolder]: For 725306/725364 co-relation queries the response was YES. [2021-06-30 12:57:07,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125366 conditions, 11061 events. 6819/11061 cut-off events. For 725306/725364 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 77973 event pairs, 831 based on Foata normal form. 28/10650 useless extension candidates. Maximal degree in co-relation 123779. Up to 8140 conditions per place. [2021-06-30 12:57:07,592 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1182 selfloop transitions, 261 changer transitions 0/1453 dead transitions. [2021-06-30 12:57:07,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1453 transitions, 48329 flow [2021-06-30 12:57:07,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:57:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:57:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-06-30 12:57:07,594 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-06-30 12:57:07,594 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-06-30 12:57:07,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-06-30 12:57:07,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:07,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-06-30 12:57:07,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:07,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:07,596 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:07,596 INFO L185 Difference]: Start difference. First operand has 418 places, 1414 transitions, 44001 flow. Second operand 8 states and 176 transitions. [2021-06-30 12:57:07,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1453 transitions, 48329 flow [2021-06-30 12:57:10,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1453 transitions, 47873 flow, removed 228 selfloop flow, removed 0 redundant places. [2021-06-30 12:57:10,273 INFO L241 Difference]: Finished difference. Result has 426 places, 1438 transitions, 45602 flow [2021-06-30 12:57:10,275 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=43545, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=45602, PETRI_PLACES=426, PETRI_TRANSITIONS=1438} [2021-06-30 12:57:10,275 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 391 predicate places. [2021-06-30 12:57:10,275 INFO L482 AbstractCegarLoop]: Abstraction has has 426 places, 1438 transitions, 45602 flow [2021-06-30 12:57:10,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:10,275 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:10,275 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:10,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-30 12:57:10,275 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:10,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:10,276 INFO L82 PathProgramCache]: Analyzing trace with hash 255051486, now seen corresponding path program 15 times [2021-06-30 12:57:10,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:10,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137766360] [2021-06-30 12:57:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:10,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:10,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:10,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:10,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:10,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:10,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:10,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:10,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:10,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:10,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:10,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:10,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:10,329 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:10,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:57:10,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:10,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137766360] [2021-06-30 12:57:10,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137766360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:57:10,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:57:10,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:57:10,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873690470] [2021-06-30 12:57:10,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:57:10,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:10,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:57:10,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:57:10,333 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:10,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 1438 transitions, 45602 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:10,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:10,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:10,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:15,202 INFO L129 PetriNetUnfolder]: 6933/11203 cut-off events. [2021-06-30 12:57:15,202 INFO L130 PetriNetUnfolder]: For 784509/784567 co-relation queries the response was YES. [2021-06-30 12:57:15,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129480 conditions, 11203 events. 6933/11203 cut-off events. For 784509/784567 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 78809 event pairs, 667 based on Foata normal form. 28/10787 useless extension candidates. Maximal degree in co-relation 127891. Up to 8544 conditions per place. [2021-06-30 12:57:15,500 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1281 selfloop transitions, 205 changer transitions 0/1496 dead transitions. [2021-06-30 12:57:15,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 1496 transitions, 50655 flow [2021-06-30 12:57:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:57:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:57:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-06-30 12:57:15,502 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.68359375 [2021-06-30 12:57:15,502 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-06-30 12:57:15,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-06-30 12:57:15,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:15,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-06-30 12:57:15,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:15,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:15,503 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:15,503 INFO L185 Difference]: Start difference. First operand has 426 places, 1438 transitions, 45602 flow. Second operand 8 states and 175 transitions. [2021-06-30 12:57:15,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 1496 transitions, 50655 flow [2021-06-30 12:57:17,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1496 transitions, 49904 flow, removed 341 selfloop flow, removed 1 redundant places. [2021-06-30 12:57:17,716 INFO L241 Difference]: Finished difference. Result has 437 places, 1482 transitions, 47642 flow [2021-06-30 12:57:17,717 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=44899, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=47642, PETRI_PLACES=437, PETRI_TRANSITIONS=1482} [2021-06-30 12:57:17,717 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 402 predicate places. [2021-06-30 12:57:17,717 INFO L482 AbstractCegarLoop]: Abstraction has has 437 places, 1482 transitions, 47642 flow [2021-06-30 12:57:17,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:17,718 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:17,718 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:17,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-30 12:57:17,718 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:17,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:17,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1697353406, now seen corresponding path program 16 times [2021-06-30 12:57:17,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:17,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080009835] [2021-06-30 12:57:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:17,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:17,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:17,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:57:17,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:17,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080009835] [2021-06-30 12:57:17,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080009835] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:17,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851338443] [2021-06-30 12:57:17,776 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-30 12:57:17,799 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-30 12:57:17,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:57:17,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:57:17,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:57:17,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:17,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:17,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:17,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:17,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:17,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:17,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:17,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:17,832 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:57:17,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:17,835 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:57:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,847 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:57:17,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:57:17,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851338443] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:17,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:57:17,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:57:17,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964424349] [2021-06-30 12:57:17,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:57:17,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:17,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:57:17,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:57:17,860 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:17,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1482 transitions, 47642 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:17,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:17,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:17,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:23,041 INFO L129 PetriNetUnfolder]: 7215/11667 cut-off events. [2021-06-30 12:57:23,041 INFO L130 PetriNetUnfolder]: For 849485/849543 co-relation queries the response was YES. [2021-06-30 12:57:23,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137634 conditions, 11667 events. 7215/11667 cut-off events. For 849485/849543 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 82616 event pairs, 894 based on Foata normal form. 28/11259 useless extension candidates. Maximal degree in co-relation 136040. Up to 9044 conditions per place. [2021-06-30 12:57:23,331 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1396 selfloop transitions, 189 changer transitions 0/1595 dead transitions. [2021-06-30 12:57:23,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 1595 transitions, 55463 flow [2021-06-30 12:57:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:57:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:57:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:57:23,332 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:57:23,332 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:57:23,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:57:23,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:23,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:57:23,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:23,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:23,333 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:23,333 INFO L185 Difference]: Start difference. First operand has 437 places, 1482 transitions, 47642 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:57:23,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 1595 transitions, 55463 flow [2021-06-30 12:57:25,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1595 transitions, 54445 flow, removed 509 selfloop flow, removed 0 redundant places. [2021-06-30 12:57:25,878 INFO L241 Difference]: Finished difference. Result has 450 places, 1582 transitions, 52074 flow [2021-06-30 12:57:25,879 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=47084, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=52074, PETRI_PLACES=450, PETRI_TRANSITIONS=1582} [2021-06-30 12:57:25,879 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 415 predicate places. [2021-06-30 12:57:25,879 INFO L482 AbstractCegarLoop]: Abstraction has has 450 places, 1582 transitions, 52074 flow [2021-06-30 12:57:25,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:25,880 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:25,880 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:26,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-06-30 12:57:26,080 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:26,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:26,081 INFO L82 PathProgramCache]: Analyzing trace with hash -301036976, now seen corresponding path program 17 times [2021-06-30 12:57:26,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:26,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104210576] [2021-06-30 12:57:26,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:26,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:26,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:26,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:26,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:26,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:26,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:26,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:26,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:26,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:26,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:26,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:26,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:26,135 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:26,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:57:26,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:26,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104210576] [2021-06-30 12:57:26,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104210576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:57:26,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:57:26,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:57:26,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633421377] [2021-06-30 12:57:26,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:57:26,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:26,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:57:26,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:57:26,139 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:26,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1582 transitions, 52074 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:26,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:26,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:26,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:31,614 INFO L129 PetriNetUnfolder]: 7503/12090 cut-off events. [2021-06-30 12:57:31,615 INFO L130 PetriNetUnfolder]: For 930331/930389 co-relation queries the response was YES. [2021-06-30 12:57:31,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145981 conditions, 12090 events. 7503/12090 cut-off events. For 930331/930389 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 85509 event pairs, 956 based on Foata normal form. 28/11687 useless extension candidates. Maximal degree in co-relation 144380. Up to 9399 conditions per place. [2021-06-30 12:57:31,888 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1479 selfloop transitions, 209 changer transitions 0/1698 dead transitions. [2021-06-30 12:57:31,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 1698 transitions, 60122 flow [2021-06-30 12:57:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:57:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:57:31,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-06-30 12:57:31,889 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67578125 [2021-06-30 12:57:31,889 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-06-30 12:57:31,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-06-30 12:57:31,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:31,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-06-30 12:57:31,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:31,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:31,890 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:31,890 INFO L185 Difference]: Start difference. First operand has 450 places, 1582 transitions, 52074 flow. Second operand 8 states and 173 transitions. [2021-06-30 12:57:31,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 1698 transitions, 60122 flow [2021-06-30 12:57:34,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 1698 transitions, 58860 flow, removed 631 selfloop flow, removed 0 redundant places. [2021-06-30 12:57:34,237 INFO L241 Difference]: Finished difference. Result has 463 places, 1686 transitions, 56380 flow [2021-06-30 12:57:34,239 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=51354, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=56380, PETRI_PLACES=463, PETRI_TRANSITIONS=1686} [2021-06-30 12:57:34,239 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 428 predicate places. [2021-06-30 12:57:34,239 INFO L482 AbstractCegarLoop]: Abstraction has has 463 places, 1686 transitions, 56380 flow [2021-06-30 12:57:34,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:34,239 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:34,239 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:34,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-30 12:57:34,240 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:34,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:34,240 INFO L82 PathProgramCache]: Analyzing trace with hash 68329518, now seen corresponding path program 19 times [2021-06-30 12:57:34,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:34,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183807575] [2021-06-30 12:57:34,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:34,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:34,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,285 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:34,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:57:34,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:34,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183807575] [2021-06-30 12:57:34,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183807575] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:34,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075882090] [2021-06-30 12:57:34,288 INFO L93 rtionOrderModulation]: Changing assertion order to 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 [2021-06-30 12:57:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:34,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:57:34,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:57:34,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:34,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:34,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:34,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:34,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:34,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:34,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:34,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:34,353 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:57:34,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:34,356 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:57:34,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,363 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:57:34,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:34,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:57:34,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075882090] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:34,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:57:34,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 12:57:34,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861036034] [2021-06-30 12:57:34,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:57:34,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:34,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:57:34,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:57:34,386 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:34,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1686 transitions, 56380 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:34,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:34,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:34,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:39,736 INFO L129 PetriNetUnfolder]: 6170/10080 cut-off events. [2021-06-30 12:57:39,736 INFO L130 PetriNetUnfolder]: For 871385/876839 co-relation queries the response was YES. [2021-06-30 12:57:39,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129552 conditions, 10080 events. 6170/10080 cut-off events. For 871385/876839 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 70895 event pairs, 875 based on Foata normal form. 450/10170 useless extension candidates. Maximal degree in co-relation 128025. Up to 7853 conditions per place. [2021-06-30 12:57:40,178 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1614 selfloop transitions, 125 changer transitions 0/1749 dead transitions. [2021-06-30 12:57:40,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 1749 transitions, 61873 flow [2021-06-30 12:57:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:57:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 12:57:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 153 transitions. [2021-06-30 12:57:40,193 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6830357142857143 [2021-06-30 12:57:40,193 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 153 transitions. [2021-06-30 12:57:40,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 153 transitions. [2021-06-30 12:57:40,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:40,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 153 transitions. [2021-06-30 12:57:40,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:40,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:40,198 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:40,198 INFO L185 Difference]: Start difference. First operand has 463 places, 1686 transitions, 56380 flow. Second operand 7 states and 153 transitions. [2021-06-30 12:57:40,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 1749 transitions, 61873 flow [2021-06-30 12:57:43,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1749 transitions, 61115 flow, removed 379 selfloop flow, removed 0 redundant places. [2021-06-30 12:57:43,568 INFO L241 Difference]: Finished difference. Result has 474 places, 1738 transitions, 58132 flow [2021-06-30 12:57:43,569 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=55622, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1574, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=58132, PETRI_PLACES=474, PETRI_TRANSITIONS=1738} [2021-06-30 12:57:43,569 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 439 predicate places. [2021-06-30 12:57:43,569 INFO L482 AbstractCegarLoop]: Abstraction has has 474 places, 1738 transitions, 58132 flow [2021-06-30 12:57:43,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:43,569 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:43,569 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:43,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:57:43,772 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:43,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1736613506, now seen corresponding path program 20 times [2021-06-30 12:57:43,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:43,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183281376] [2021-06-30 12:57:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:43,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,843 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:43,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:57:43,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:43,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183281376] [2021-06-30 12:57:43,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183281376] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:43,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964396093] [2021-06-30 12:57:43,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:57:43,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 12:57:43,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:57:43,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:57:43,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:57:43,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:43,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:43,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:43,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:43,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,917 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:57:43,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:43,924 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:57:43,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,934 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:57:43,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:43,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:43,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:57:43,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964396093] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:43,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:57:43,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:57:43,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994497656] [2021-06-30 12:57:43,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:57:43,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:43,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:57:43,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:57:43,944 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:43,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1738 transitions, 58132 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:43,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:43,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:43,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:49,993 INFO L129 PetriNetUnfolder]: 6242/10137 cut-off events. [2021-06-30 12:57:49,994 INFO L130 PetriNetUnfolder]: For 920021/925486 co-relation queries the response was YES. [2021-06-30 12:57:50,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132055 conditions, 10137 events. 6242/10137 cut-off events. For 920021/925486 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 70758 event pairs, 769 based on Foata normal form. 535/10308 useless extension candidates. Maximal degree in co-relation 130514. Up to 7254 conditions per place. [2021-06-30 12:57:50,417 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1478 selfloop transitions, 289 changer transitions 0/1777 dead transitions. [2021-06-30 12:57:50,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1777 transitions, 63302 flow [2021-06-30 12:57:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:57:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:57:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-06-30 12:57:50,418 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-06-30 12:57:50,419 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-06-30 12:57:50,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-06-30 12:57:50,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:57:50,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-06-30 12:57:50,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:50,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:50,420 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:50,420 INFO L185 Difference]: Start difference. First operand has 474 places, 1738 transitions, 58132 flow. Second operand 8 states and 176 transitions. [2021-06-30 12:57:50,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 1777 transitions, 63302 flow [2021-06-30 12:57:52,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 1777 transitions, 62684 flow, removed 309 selfloop flow, removed 0 redundant places. [2021-06-30 12:57:52,841 INFO L241 Difference]: Finished difference. Result has 482 places, 1762 transitions, 59827 flow [2021-06-30 12:57:52,843 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=57514, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1738, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=59827, PETRI_PLACES=482, PETRI_TRANSITIONS=1762} [2021-06-30 12:57:52,843 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 447 predicate places. [2021-06-30 12:57:52,843 INFO L482 AbstractCegarLoop]: Abstraction has has 482 places, 1762 transitions, 59827 flow [2021-06-30 12:57:52,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:52,843 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:57:52,843 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:57:53,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-06-30 12:57:53,044 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:57:53,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:57:53,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2117296262, now seen corresponding path program 21 times [2021-06-30 12:57:53,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:57:53,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85283330] [2021-06-30 12:57:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:57:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:57:53,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:53,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,129 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:57:53,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:57:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:57:53,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:57:53,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85283330] [2021-06-30 12:57:53,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85283330] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:53,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765521784] [2021-06-30 12:57:53,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:57:53,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-30 12:57:53,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:57:53,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:57:53,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:57:53,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:53,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:53,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:53,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:57:53,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:53,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:53,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:53,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:57:53,210 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:57:53,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:57:53,214 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:57:53,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,224 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:57:53,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:57:53,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:57:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:57:53,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765521784] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:57:53,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:57:53,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:57:53,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761624937] [2021-06-30 12:57:53,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:57:53,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:57:53,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:57:53,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:57:53,233 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:57:53,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 1762 transitions, 59827 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:57:53,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:57:53,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:57:53,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:57:59,543 INFO L129 PetriNetUnfolder]: 6761/10967 cut-off events. [2021-06-30 12:57:59,543 INFO L130 PetriNetUnfolder]: For 1001457/1007023 co-relation queries the response was YES. [2021-06-30 12:57:59,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144411 conditions, 10967 events. 6761/10967 cut-off events. For 1001457/1007023 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 77468 event pairs, 1009 based on Foata normal form. 535/11139 useless extension candidates. Maximal degree in co-relation 142864. Up to 8460 conditions per place. [2021-06-30 12:58:00,053 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1732 selfloop transitions, 205 changer transitions 0/1947 dead transitions. [2021-06-30 12:58:00,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 1947 transitions, 70052 flow [2021-06-30 12:58:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:58:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:58:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:58:00,054 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:58:00,054 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:58:00,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:58:00,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:58:00,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:58:00,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:00,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:00,055 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:00,055 INFO L185 Difference]: Start difference. First operand has 482 places, 1762 transitions, 59827 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:58:00,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 1947 transitions, 70052 flow [2021-06-30 12:58:02,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 1947 transitions, 68894 flow, removed 579 selfloop flow, removed 0 redundant places. [2021-06-30 12:58:02,917 INFO L241 Difference]: Finished difference. Result has 495 places, 1934 transitions, 66019 flow [2021-06-30 12:58:02,918 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=59221, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1574, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=66019, PETRI_PLACES=495, PETRI_TRANSITIONS=1934} [2021-06-30 12:58:02,918 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 460 predicate places. [2021-06-30 12:58:02,918 INFO L482 AbstractCegarLoop]: Abstraction has has 495 places, 1934 transitions, 66019 flow [2021-06-30 12:58:02,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:02,919 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:58:02,919 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:58:03,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:58:03,120 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:58:03,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:58:03,120 INFO L82 PathProgramCache]: Analyzing trace with hash -351952254, now seen corresponding path program 22 times [2021-06-30 12:58:03,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:58:03,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184647019] [2021-06-30 12:58:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:58:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:58:03,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:03,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:58:03,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:58:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:58:03,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:58:03,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184647019] [2021-06-30 12:58:03,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184647019] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:58:03,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957216520] [2021-06-30 12:58:03,211 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-30 12:58:03,254 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-30 12:58:03,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:58:03,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:58:03,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:58:03,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:03,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:03,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:03,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:03,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:03,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:03,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:03,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:03,287 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:58:03,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:03,294 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:58:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,301 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:58:03,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:03,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:58:03,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957216520] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:58:03,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:58:03,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:58:03,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725896610] [2021-06-30 12:58:03,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:58:03,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:58:03,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:58:03,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:58:03,317 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:58:03,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 1934 transitions, 66019 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:03,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:58:03,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:58:03,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:58:10,341 INFO L129 PetriNetUnfolder]: 7091/11492 cut-off events. [2021-06-30 12:58:10,341 INFO L130 PetriNetUnfolder]: For 1071429/1077548 co-relation queries the response was YES. [2021-06-30 12:58:10,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152623 conditions, 11492 events. 7091/11492 cut-off events. For 1071429/1077548 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 81537 event pairs, 992 based on Foata normal form. 595/11725 useless extension candidates. Maximal degree in co-relation 151061. Up to 8650 conditions per place. [2021-06-30 12:58:10,870 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1768 selfloop transitions, 289 changer transitions 0/2067 dead transitions. [2021-06-30 12:58:10,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 2067 transitions, 74851 flow [2021-06-30 12:58:10,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:58:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:58:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:58:10,871 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:58:10,871 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:58:10,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:58:10,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:58:10,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:58:10,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:10,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:10,872 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:10,872 INFO L185 Difference]: Start difference. First operand has 495 places, 1934 transitions, 66019 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:58:10,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 2067 transitions, 74851 flow [2021-06-30 12:58:13,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 2067 transitions, 73253 flow, removed 799 selfloop flow, removed 0 redundant places. [2021-06-30 12:58:13,963 INFO L241 Difference]: Finished difference. Result has 508 places, 2054 transitions, 70353 flow [2021-06-30 12:58:13,964 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=65035, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=70353, PETRI_PLACES=508, PETRI_TRANSITIONS=2054} [2021-06-30 12:58:13,964 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 473 predicate places. [2021-06-30 12:58:13,964 INFO L482 AbstractCegarLoop]: Abstraction has has 508 places, 2054 transitions, 70353 flow [2021-06-30 12:58:13,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:13,964 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:58:13,964 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:58:14,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-06-30 12:58:14,165 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:58:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:58:14,165 INFO L82 PathProgramCache]: Analyzing trace with hash 529398248, now seen corresponding path program 23 times [2021-06-30 12:58:14,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:58:14,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286621077] [2021-06-30 12:58:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:58:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:58:14,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:14,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:14,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:14,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:14,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:14,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:14,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:14,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:14,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:14,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:58:14,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:58:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:58:14,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:58:14,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286621077] [2021-06-30 12:58:14,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286621077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:58:14,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:58:14,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:58:14,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602762092] [2021-06-30 12:58:14,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:58:14,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:58:14,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:58:14,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:58:14,221 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:58:14,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 2054 transitions, 70353 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:14,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:58:14,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:58:14,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:58:21,996 INFO L129 PetriNetUnfolder]: 7421/12008 cut-off events. [2021-06-30 12:58:21,997 INFO L130 PetriNetUnfolder]: For 1146669/1152791 co-relation queries the response was YES. [2021-06-30 12:58:22,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160968 conditions, 12008 events. 7421/12008 cut-off events. For 1146669/1152791 co-relation queries the response was YES. Maximal size of possible extension queue 922. Compared 85660 event pairs, 1072 based on Foata normal form. 501/12147 useless extension candidates. Maximal degree in co-relation 159391. Up to 9109 conditions per place. [2021-06-30 12:58:22,519 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1887 selfloop transitions, 289 changer transitions 0/2186 dead transitions. [2021-06-30 12:58:22,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 2186 transitions, 79203 flow [2021-06-30 12:58:22,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:58:22,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:58:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-06-30 12:58:22,520 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67578125 [2021-06-30 12:58:22,520 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-06-30 12:58:22,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-06-30 12:58:22,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:58:22,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-06-30 12:58:22,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:22,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:22,521 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:22,521 INFO L185 Difference]: Start difference. First operand has 508 places, 2054 transitions, 70353 flow. Second operand 8 states and 173 transitions. [2021-06-30 12:58:22,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 2186 transitions, 79203 flow [2021-06-30 12:58:25,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 2186 transitions, 78335 flow, removed 434 selfloop flow, removed 0 redundant places. [2021-06-30 12:58:25,843 INFO L241 Difference]: Finished difference. Result has 521 places, 2174 transitions, 75200 flow [2021-06-30 12:58:25,845 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=69485, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1782, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=75200, PETRI_PLACES=521, PETRI_TRANSITIONS=2174} [2021-06-30 12:58:25,845 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 486 predicate places. [2021-06-30 12:58:25,845 INFO L482 AbstractCegarLoop]: Abstraction has has 521 places, 2174 transitions, 75200 flow [2021-06-30 12:58:25,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:25,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:58:25,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:58:25,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-30 12:58:25,845 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:58:25,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:58:25,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1439986512, now seen corresponding path program 18 times [2021-06-30 12:58:25,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:58:25,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106179341] [2021-06-30 12:58:25,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:58:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:58:25,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:58:25,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:58:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:58:25,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:58:25,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106179341] [2021-06-30 12:58:25,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106179341] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:58:25,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751875813] [2021-06-30 12:58:25,902 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-30 12:58:25,934 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-30 12:58:25,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:58:25,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:58:25,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:58:25,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:25,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:25,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:25,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:58:25,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,961 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:58:25,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:25,972 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:58:25,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,975 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:58:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:25,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:58:25,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751875813] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:58:25,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:58:25,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:58:25,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202420050] [2021-06-30 12:58:25,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:58:25,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:58:25,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:58:25,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:58:25,999 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:58:25,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 2174 transitions, 75200 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:25,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:58:25,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:58:25,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:58:37,458 INFO L129 PetriNetUnfolder]: 10311/16896 cut-off events. [2021-06-30 12:58:37,459 INFO L130 PetriNetUnfolder]: For 1418727/1418785 co-relation queries the response was YES. [2021-06-30 12:58:37,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209987 conditions, 16896 events. 10311/16896 cut-off events. For 1418727/1418785 co-relation queries the response was YES. Maximal size of possible extension queue 1268. Compared 129071 event pairs, 1199 based on Foata normal form. 28/16188 useless extension candidates. Maximal degree in co-relation 208314. Up to 12610 conditions per place. [2021-06-30 12:58:37,972 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 1903 selfloop transitions, 301 changer transitions 0/2214 dead transitions. [2021-06-30 12:58:37,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 2214 transitions, 81431 flow [2021-06-30 12:58:37,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:58:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:58:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2021-06-30 12:58:37,973 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.69140625 [2021-06-30 12:58:37,973 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 177 transitions. [2021-06-30 12:58:37,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 177 transitions. [2021-06-30 12:58:37,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:58:37,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 177 transitions. [2021-06-30 12:58:37,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:37,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:37,974 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:37,974 INFO L185 Difference]: Start difference. First operand has 521 places, 2174 transitions, 75200 flow. Second operand 8 states and 177 transitions. [2021-06-30 12:58:37,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 2214 transitions, 81431 flow [2021-06-30 12:58:42,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 2214 transitions, 80539 flow, removed 446 selfloop flow, removed 0 redundant places. [2021-06-30 12:58:43,055 INFO L241 Difference]: Finished difference. Result has 529 places, 2198 transitions, 76834 flow [2021-06-30 12:58:43,057 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=74308, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1890, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=76834, PETRI_PLACES=529, PETRI_TRANSITIONS=2198} [2021-06-30 12:58:43,057 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 494 predicate places. [2021-06-30 12:58:43,057 INFO L482 AbstractCegarLoop]: Abstraction has has 529 places, 2198 transitions, 76834 flow [2021-06-30 12:58:43,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:43,057 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:58:43,057 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:58:43,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-06-30 12:58:43,273 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:58:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:58:43,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2058387664, now seen corresponding path program 19 times [2021-06-30 12:58:43,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:58:43,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361830680] [2021-06-30 12:58:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:58:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:58:43,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:43,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:43,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:43,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:43,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:43,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:43,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:58:43,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:43,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:58:43,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:58:43,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:58:43,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:58:43,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:58:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:58:43,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:58:43,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361830680] [2021-06-30 12:58:43,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361830680] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:58:43,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:58:43,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:58:43,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880112153] [2021-06-30 12:58:43,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:58:43,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:58:43,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:58:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:58:43,330 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:58:43,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 2198 transitions, 76834 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:43,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:58:43,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:58:43,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:58:54,890 INFO L129 PetriNetUnfolder]: 10776/17629 cut-off events. [2021-06-30 12:58:54,890 INFO L130 PetriNetUnfolder]: For 1521708/1521766 co-relation queries the response was YES. [2021-06-30 12:58:55,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222484 conditions, 17629 events. 10776/17629 cut-off events. For 1521708/1521766 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 135340 event pairs, 1509 based on Foata normal form. 28/16932 useless extension candidates. Maximal degree in co-relation 220809. Up to 13799 conditions per place. [2021-06-30 12:58:55,512 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2156 selfloop transitions, 205 changer transitions 0/2371 dead transitions. [2021-06-30 12:58:55,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 2371 transitions, 88778 flow [2021-06-30 12:58:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:58:55,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:58:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:58:55,512 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:58:55,512 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:58:55,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:58:55,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:58:55,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:58:55,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:55,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:55,513 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:58:55,513 INFO L185 Difference]: Start difference. First operand has 529 places, 2198 transitions, 76834 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:58:55,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 2371 transitions, 88778 flow [2021-06-30 12:59:00,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 2371 transitions, 87454 flow, removed 662 selfloop flow, removed 0 redundant places. [2021-06-30 12:59:00,187 INFO L241 Difference]: Finished difference. Result has 542 places, 2358 transitions, 83707 flow [2021-06-30 12:59:00,189 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=76132, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=83707, PETRI_PLACES=542, PETRI_TRANSITIONS=2358} [2021-06-30 12:59:00,189 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 507 predicate places. [2021-06-30 12:59:00,189 INFO L482 AbstractCegarLoop]: Abstraction has has 542 places, 2358 transitions, 83707 flow [2021-06-30 12:59:00,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:00,189 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:00,189 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:00,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-30 12:59:00,189 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash -70184744, now seen corresponding path program 20 times [2021-06-30 12:59:00,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:00,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706594187] [2021-06-30 12:59:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:00,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:59:00,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,254 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:59:00,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:59:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:00,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:00,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706594187] [2021-06-30 12:59:00,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706594187] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:00,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491145166] [2021-06-30 12:59:00,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 12:59:00,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 12:59:00,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 12:59:00,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:59:00,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:59:00,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:00,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:00,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:00,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:00,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:59:00,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:59:00,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:59:00,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:59:00,328 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 12:59:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:00,330 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 12:59:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,343 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:59:00,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:00,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:00,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491145166] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:00,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:59:00,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:59:00,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26881473] [2021-06-30 12:59:00,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:59:00,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:00,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:59:00,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:59:00,350 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:59:00,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 2358 transitions, 83707 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:00,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:00,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:59:00,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:59:13,999 INFO L129 PetriNetUnfolder]: 11196/18306 cut-off events. [2021-06-30 12:59:14,000 INFO L130 PetriNetUnfolder]: For 1636091/1636149 co-relation queries the response was YES. [2021-06-30 12:59:14,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234355 conditions, 18306 events. 11196/18306 cut-off events. For 1636091/1636149 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 140977 event pairs, 1518 based on Foata normal form. 28/17610 useless extension candidates. Maximal degree in co-relation 232673. Up to 14159 conditions per place. [2021-06-30 12:59:14,827 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2244 selfloop transitions, 269 changer transitions 0/2523 dead transitions. [2021-06-30 12:59:14,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 2523 transitions, 95566 flow [2021-06-30 12:59:14,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:59:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:59:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-06-30 12:59:14,831 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2021-06-30 12:59:14,831 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-06-30 12:59:14,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-06-30 12:59:14,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:59:14,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-06-30 12:59:14,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:14,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:14,854 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:14,854 INFO L185 Difference]: Start difference. First operand has 542 places, 2358 transitions, 83707 flow. Second operand 8 states and 174 transitions. [2021-06-30 12:59:14,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 2523 transitions, 95566 flow [2021-06-30 12:59:20,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 2523 transitions, 93718 flow, removed 924 selfloop flow, removed 0 redundant places. [2021-06-30 12:59:20,284 INFO L241 Difference]: Finished difference. Result has 555 places, 2510 transitions, 89898 flow [2021-06-30 12:59:20,286 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=82537, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=89898, PETRI_PLACES=555, PETRI_TRANSITIONS=2510} [2021-06-30 12:59:20,286 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 520 predicate places. [2021-06-30 12:59:20,286 INFO L482 AbstractCegarLoop]: Abstraction has has 555 places, 2510 transitions, 89898 flow [2021-06-30 12:59:20,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:20,287 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:20,287 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:20,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:59:20,510 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:20,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:20,511 INFO L82 PathProgramCache]: Analyzing trace with hash -623586338, now seen corresponding path program 21 times [2021-06-30 12:59:20,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:20,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118809121] [2021-06-30 12:59:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:20,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:20,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:20,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:20,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:20,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:20,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:20,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:20,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 12:59:20,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:20,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 12:59:20,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:20,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:20,568 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:59:20,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:59:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:59:20,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:20,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118809121] [2021-06-30 12:59:20,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118809121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:59:20,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:59:20,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 12:59:20,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004320681] [2021-06-30 12:59:20,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:59:20,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:20,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:59:20,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:59:20,574 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:59:20,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 2510 transitions, 89898 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:20,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:20,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:59:20,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:59:35,194 INFO L129 PetriNetUnfolder]: 11583/18889 cut-off events. [2021-06-30 12:59:35,194 INFO L130 PetriNetUnfolder]: For 1782423/1782481 co-relation queries the response was YES. [2021-06-30 12:59:35,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246284 conditions, 18889 events. 11583/18889 cut-off events. For 1782423/1782481 co-relation queries the response was YES. Maximal size of possible extension queue 1401. Compared 145562 event pairs, 1657 based on Foata normal form. 28/18202 useless extension candidates. Maximal degree in co-relation 244595. Up to 14644 conditions per place. [2021-06-30 12:59:36,088 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2363 selfloop transitions, 289 changer transitions 0/2662 dead transitions. [2021-06-30 12:59:36,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 2662 transitions, 102048 flow [2021-06-30 12:59:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:59:36,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 12:59:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-06-30 12:59:36,089 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67578125 [2021-06-30 12:59:36,089 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-06-30 12:59:36,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-06-30 12:59:36,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:59:36,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-06-30 12:59:36,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:36,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:36,090 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:36,090 INFO L185 Difference]: Start difference. First operand has 555 places, 2510 transitions, 89898 flow. Second operand 8 states and 173 transitions. [2021-06-30 12:59:36,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 2662 transitions, 102048 flow [2021-06-30 12:59:42,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 2662 transitions, 100266 flow, removed 891 selfloop flow, removed 0 redundant places. [2021-06-30 12:59:42,788 INFO L241 Difference]: Finished difference. Result has 568 places, 2650 transitions, 96219 flow [2021-06-30 12:59:42,790 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=88826, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=96219, PETRI_PLACES=568, PETRI_TRANSITIONS=2650} [2021-06-30 12:59:42,790 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 533 predicate places. [2021-06-30 12:59:42,790 INFO L482 AbstractCegarLoop]: Abstraction has has 568 places, 2650 transitions, 96219 flow [2021-06-30 12:59:42,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:42,791 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:42,791 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:42,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-30 12:59:42,791 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:42,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:42,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1933015142, now seen corresponding path program 1 times [2021-06-30 12:59:42,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:42,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056044859] [2021-06-30 12:59:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:42,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:59:42,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:59:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:42,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:42,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056044859] [2021-06-30 12:59:42,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056044859] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:42,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583391784] [2021-06-30 12:59:42,828 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 [2021-06-30 12:59:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:42,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:59:42,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:59:42,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:42,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:42,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:42,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,920 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:59:42,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,937 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:59:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,948 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 12:59:42,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:42,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:42,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583391784] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:42,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:59:42,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 12:59:42,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359556599] [2021-06-30 12:59:42,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:59:42,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:42,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:59:42,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:59:42,957 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 12:59:42,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 2650 transitions, 96219 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 12:59:42,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:42,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 12:59:42,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:00:00,218 INFO L129 PetriNetUnfolder]: 12581/20753 cut-off events. [2021-06-30 13:00:00,218 INFO L130 PetriNetUnfolder]: For 1921556/1921556 co-relation queries the response was YES. [2021-06-30 13:00:01,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267272 conditions, 20753 events. 12581/20753 cut-off events. For 1921556/1921556 co-relation queries the response was YES. Maximal size of possible extension queue 1607. Compared 164541 event pairs, 1534 based on Foata normal form. 1/19900 useless extension candidates. Maximal degree in co-relation 265859. Up to 16419 conditions per place. [2021-06-30 13:00:01,326 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2589 selfloop transitions, 81 changer transitions 0/2680 dead transitions. [2021-06-30 13:00:01,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 2680 transitions, 102922 flow [2021-06-30 13:00:01,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 13:00:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 13:00:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2021-06-30 13:00:01,327 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7135416666666666 [2021-06-30 13:00:01,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 137 transitions. [2021-06-30 13:00:01,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 137 transitions. [2021-06-30 13:00:01,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:00:01,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 137 transitions. [2021-06-30 13:00:01,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:01,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:01,328 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:01,328 INFO L185 Difference]: Start difference. First operand has 568 places, 2650 transitions, 96219 flow. Second operand 6 states and 137 transitions. [2021-06-30 13:00:01,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 2680 transitions, 102922 flow [2021-06-30 13:00:09,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 2680 transitions, 101862 flow, removed 530 selfloop flow, removed 0 redundant places. [2021-06-30 13:00:09,189 INFO L241 Difference]: Finished difference. Result has 577 places, 2666 transitions, 96784 flow [2021-06-30 13:00:09,191 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=95159, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96784, PETRI_PLACES=577, PETRI_TRANSITIONS=2666} [2021-06-30 13:00:09,191 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 542 predicate places. [2021-06-30 13:00:09,191 INFO L482 AbstractCegarLoop]: Abstraction has has 577 places, 2666 transitions, 96784 flow [2021-06-30 13:00:09,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:09,191 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:00:09,191 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:00:09,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-06-30 13:00:09,398 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:00:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:00:09,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1286007284, now seen corresponding path program 2 times [2021-06-30 13:00:09,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:00:09,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523728492] [2021-06-30 13:00:09,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:00:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:00:09,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:09,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:09,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:09,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:09,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:09,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:09,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:00:09,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:09,450 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:00:09,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:00:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:00:09,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:00:09,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523728492] [2021-06-30 13:00:09,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523728492] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:00:09,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:00:09,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 13:00:09,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143764169] [2021-06-30 13:00:09,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 13:00:09,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:00:09,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 13:00:09,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 13:00:09,454 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:00:09,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 2666 transitions, 96784 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:09,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:00:09,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:00:09,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:00:29,388 INFO L129 PetriNetUnfolder]: 12647/20842 cut-off events. [2021-06-30 13:00:29,388 INFO L130 PetriNetUnfolder]: For 1952885/1952885 co-relation queries the response was YES. [2021-06-30 13:00:30,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269607 conditions, 20842 events. 12647/20842 cut-off events. For 1952885/1952885 co-relation queries the response was YES. Maximal size of possible extension queue 1614. Compared 165101 event pairs, 1542 based on Foata normal form. 1/19989 useless extension candidates. Maximal degree in co-relation 267656. Up to 16346 conditions per place. [2021-06-30 13:00:30,198 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2562 selfloop transitions, 129 changer transitions 0/2701 dead transitions. [2021-06-30 13:00:30,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 2701 transitions, 103837 flow [2021-06-30 13:00:30,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 13:00:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 13:00:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-06-30 13:00:30,199 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2021-06-30 13:00:30,199 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-06-30 13:00:30,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-06-30 13:00:30,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:00:30,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-06-30 13:00:30,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:30,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:30,199 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:30,199 INFO L185 Difference]: Start difference. First operand has 577 places, 2666 transitions, 96784 flow. Second operand 7 states and 157 transitions. [2021-06-30 13:00:30,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 2701 transitions, 103837 flow [2021-06-30 13:00:37,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 2701 transitions, 103367 flow, removed 235 selfloop flow, removed 0 redundant places. [2021-06-30 13:00:37,623 INFO L241 Difference]: Finished difference. Result has 585 places, 2686 transitions, 98318 flow [2021-06-30 13:00:37,625 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=96314, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98318, PETRI_PLACES=585, PETRI_TRANSITIONS=2686} [2021-06-30 13:00:37,625 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 550 predicate places. [2021-06-30 13:00:37,625 INFO L482 AbstractCegarLoop]: Abstraction has has 585 places, 2686 transitions, 98318 flow [2021-06-30 13:00:37,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:37,626 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:00:37,626 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:00:37,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-30 13:00:37,626 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:00:37,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:00:37,626 INFO L82 PathProgramCache]: Analyzing trace with hash 2040048168, now seen corresponding path program 3 times [2021-06-30 13:00:37,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:00:37,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710719074] [2021-06-30 13:00:37,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:00:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:00:37,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:37,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:37,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:37,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:37,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:37,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:00:37,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:37,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:37,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:37,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:37,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:00:37,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:00:37,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:00:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:00:37,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:00:37,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:00:37,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710719074] [2021-06-30 13:00:37,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710719074] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:00:37,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:00:37,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 13:00:37,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325038950] [2021-06-30 13:00:37,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 13:00:37,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:00:37,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 13:00:37,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 13:00:37,671 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:00:37,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 2686 transitions, 98318 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:37,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:00:37,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:00:37,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:00:56,236 INFO L129 PetriNetUnfolder]: 12713/20990 cut-off events. [2021-06-30 13:00:56,236 INFO L130 PetriNetUnfolder]: For 1989383/1989383 co-relation queries the response was YES. [2021-06-30 13:00:57,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272820 conditions, 20990 events. 12713/20990 cut-off events. For 1989383/1989383 co-relation queries the response was YES. Maximal size of possible extension queue 1626. Compared 167122 event pairs, 1423 based on Foata normal form. 1/20115 useless extension candidates. Maximal degree in co-relation 270710. Up to 16322 conditions per place. [2021-06-30 13:00:57,389 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2571 selfloop transitions, 141 changer transitions 0/2722 dead transitions. [2021-06-30 13:00:57,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 2722 transitions, 105480 flow [2021-06-30 13:00:57,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 13:00:57,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 13:00:57,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2021-06-30 13:00:57,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2021-06-30 13:00:57,390 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 158 transitions. [2021-06-30 13:00:57,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 158 transitions. [2021-06-30 13:00:57,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:00:57,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 158 transitions. [2021-06-30 13:00:57,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:57,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:57,391 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:00:57,391 INFO L185 Difference]: Start difference. First operand has 585 places, 2686 transitions, 98318 flow. Second operand 7 states and 158 transitions. [2021-06-30 13:00:57,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 2722 transitions, 105480 flow [2021-06-30 13:01:04,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 2722 transitions, 104617 flow, removed 393 selfloop flow, removed 2 redundant places. [2021-06-30 13:01:04,689 INFO L241 Difference]: Finished difference. Result has 591 places, 2706 transitions, 99553 flow [2021-06-30 13:01:04,691 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=97495, PETRI_DIFFERENCE_MINUEND_PLACES=583, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=99553, PETRI_PLACES=591, PETRI_TRANSITIONS=2706} [2021-06-30 13:01:04,692 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 556 predicate places. [2021-06-30 13:01:04,692 INFO L482 AbstractCegarLoop]: Abstraction has has 591 places, 2706 transitions, 99553 flow [2021-06-30 13:01:04,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:04,692 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:01:04,692 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:01:04,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-30 13:01:04,692 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:01:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:01:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1188370806, now seen corresponding path program 4 times [2021-06-30 13:01:04,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:01:04,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288038121] [2021-06-30 13:01:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:01:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:01:04,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:04,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:04,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:04,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:04,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:04,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:04,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:04,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:04,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:01:04,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:01:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:01:04,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:01:04,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288038121] [2021-06-30 13:01:04,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288038121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:01:04,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:01:04,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 13:01:04,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390293744] [2021-06-30 13:01:04,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 13:01:04,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:01:04,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 13:01:04,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 13:01:04,741 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:01:04,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 2706 transitions, 99553 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:04,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:01:04,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:01:04,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:01:24,132 INFO L129 PetriNetUnfolder]: 12827/21135 cut-off events. [2021-06-30 13:01:24,182 INFO L130 PetriNetUnfolder]: For 2062217/2062217 co-relation queries the response was YES. [2021-06-30 13:01:25,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276750 conditions, 21135 events. 12827/21135 cut-off events. For 2062217/2062217 co-relation queries the response was YES. Maximal size of possible extension queue 1640. Compared 167968 event pairs, 1438 based on Foata normal form. 1/20264 useless extension candidates. Maximal degree in co-relation 273598. Up to 16589 conditions per place. [2021-06-30 13:01:25,614 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2626 selfloop transitions, 121 changer transitions 0/2757 dead transitions. [2021-06-30 13:01:25,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 2757 transitions, 107550 flow [2021-06-30 13:01:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 13:01:25,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 13:01:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-06-30 13:01:25,615 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2021-06-30 13:01:25,615 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-06-30 13:01:25,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-06-30 13:01:25,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:01:25,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-06-30 13:01:25,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:25,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:25,615 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:25,616 INFO L185 Difference]: Start difference. First operand has 591 places, 2706 transitions, 99553 flow. Second operand 7 states and 157 transitions. [2021-06-30 13:01:25,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 2757 transitions, 107550 flow [2021-06-30 13:01:32,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 2757 transitions, 106878 flow, removed 336 selfloop flow, removed 0 redundant places. [2021-06-30 13:01:32,321 INFO L241 Difference]: Finished difference. Result has 601 places, 2742 transitions, 101794 flow [2021-06-30 13:01:32,323 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=98881, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=101794, PETRI_PLACES=601, PETRI_TRANSITIONS=2742} [2021-06-30 13:01:32,323 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 566 predicate places. [2021-06-30 13:01:32,323 INFO L482 AbstractCegarLoop]: Abstraction has has 601 places, 2742 transitions, 101794 flow [2021-06-30 13:01:32,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:32,323 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:01:32,323 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:01:32,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-30 13:01:32,323 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:01:32,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:01:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1794370822, now seen corresponding path program 5 times [2021-06-30 13:01:32,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:01:32,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588013203] [2021-06-30 13:01:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:01:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:01:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:01:32,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:01:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 13:01:32,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:01:32,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588013203] [2021-06-30 13:01:32,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588013203] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 13:01:32,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710629634] [2021-06-30 13:01:32,377 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-30 13:01:32,402 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-30 13:01:32,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 13:01:32,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 13:01:32,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 13:01:32,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:01:32,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:01:32,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:01:32,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:01:32,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,424 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 13:01:32,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:01:32,429 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 13:01:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,450 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 13:01:32,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:01:32,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:01:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 13:01:32,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710629634] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 13:01:32,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 13:01:32,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 13:01:32,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822121791] [2021-06-30 13:01:32,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 13:01:32,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:01:32,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 13:01:32,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 13:01:32,458 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:01:32,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 2742 transitions, 101794 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:32,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:01:32,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:01:32,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:01:51,879 INFO L129 PetriNetUnfolder]: 12899/21269 cut-off events. [2021-06-30 13:01:51,879 INFO L130 PetriNetUnfolder]: For 2114605/2114605 co-relation queries the response was YES. [2021-06-30 13:01:52,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280289 conditions, 21269 events. 12899/21269 cut-off events. For 2114605/2114605 co-relation queries the response was YES. Maximal size of possible extension queue 1651. Compared 169452 event pairs, 1449 based on Foata normal form. 1/20394 useless extension candidates. Maximal degree in co-relation 275646. Up to 16220 conditions per place. [2021-06-30 13:01:52,939 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2524 selfloop transitions, 249 changer transitions 0/2783 dead transitions. [2021-06-30 13:01:52,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 2783 transitions, 109410 flow [2021-06-30 13:01:52,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 13:01:52,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 13:01:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2021-06-30 13:01:52,940 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6953125 [2021-06-30 13:01:52,940 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 178 transitions. [2021-06-30 13:01:52,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 178 transitions. [2021-06-30 13:01:52,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:01:52,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 178 transitions. [2021-06-30 13:01:52,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.25) internal successors, (178), 8 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:52,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:52,941 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:52,941 INFO L185 Difference]: Start difference. First operand has 601 places, 2742 transitions, 101794 flow. Second operand 8 states and 178 transitions. [2021-06-30 13:01:52,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 2783 transitions, 109410 flow [2021-06-30 13:01:59,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 2783 transitions, 108670 flow, removed 370 selfloop flow, removed 0 redundant places. [2021-06-30 13:01:59,907 INFO L241 Difference]: Finished difference. Result has 609 places, 2766 transitions, 103703 flow [2021-06-30 13:01:59,909 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=101054, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=232, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=103703, PETRI_PLACES=609, PETRI_TRANSITIONS=2766} [2021-06-30 13:01:59,909 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 574 predicate places. [2021-06-30 13:01:59,909 INFO L482 AbstractCegarLoop]: Abstraction has has 609 places, 2766 transitions, 103703 flow [2021-06-30 13:01:59,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:01:59,910 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:01:59,910 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:02:00,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-06-30 13:02:00,122 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:02:00,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:02:00,122 INFO L82 PathProgramCache]: Analyzing trace with hash -787460268, now seen corresponding path program 6 times [2021-06-30 13:02:00,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:02:00,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46802200] [2021-06-30 13:02:00,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:02:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:02:00,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:00,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:00,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:00,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:00,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:00,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:00,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:00,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:00,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:00,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:00,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:00,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:00,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:02:00,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:02:00,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:02:00,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:02:00,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46802200] [2021-06-30 13:02:00,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46802200] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:02:00,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:02:00,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 13:02:00,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518655097] [2021-06-30 13:02:00,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 13:02:00,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:02:00,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 13:02:00,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 13:02:00,156 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:02:00,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 2766 transitions, 103703 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:00,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:02:00,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:02:00,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:02:20,863 INFO L129 PetriNetUnfolder]: 12947/21289 cut-off events. [2021-06-30 13:02:20,863 INFO L130 PetriNetUnfolder]: For 2147476/2147476 co-relation queries the response was YES. [2021-06-30 13:02:22,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 283178 conditions, 21289 events. 12947/21289 cut-off events. For 2147476/2147476 co-relation queries the response was YES. Maximal size of possible extension queue 1653. Compared 168753 event pairs, 1528 based on Foata normal form. 1/20443 useless extension candidates. Maximal degree in co-relation 278640. Up to 17079 conditions per place. [2021-06-30 13:02:22,238 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2731 selfloop transitions, 53 changer transitions 0/2794 dead transitions. [2021-06-30 13:02:22,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 2794 transitions, 110714 flow [2021-06-30 13:02:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 13:02:22,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 13:02:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2021-06-30 13:02:22,239 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.703125 [2021-06-30 13:02:22,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 135 transitions. [2021-06-30 13:02:22,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 135 transitions. [2021-06-30 13:02:22,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:02:22,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 135 transitions. [2021-06-30 13:02:22,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:22,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:22,240 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:22,240 INFO L185 Difference]: Start difference. First operand has 609 places, 2766 transitions, 103703 flow. Second operand 6 states and 135 transitions. [2021-06-30 13:02:22,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 2794 transitions, 110714 flow [2021-06-30 13:02:29,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 2794 transitions, 109495 flow, removed 541 selfloop flow, removed 2 redundant places. [2021-06-30 13:02:30,000 INFO L241 Difference]: Finished difference. Result has 615 places, 2782 transitions, 104069 flow [2021-06-30 13:02:30,002 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=102580, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2722, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=104069, PETRI_PLACES=615, PETRI_TRANSITIONS=2782} [2021-06-30 13:02:30,002 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 580 predicate places. [2021-06-30 13:02:30,002 INFO L482 AbstractCegarLoop]: Abstraction has has 615 places, 2782 transitions, 104069 flow [2021-06-30 13:02:30,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:30,003 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:02:30,003 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:02:30,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-30 13:02:30,003 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:02:30,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:02:30,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1847125820, now seen corresponding path program 7 times [2021-06-30 13:02:30,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:02:30,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176141227] [2021-06-30 13:02:30,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:02:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:02:30,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:30,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:30,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:30,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:30,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:30,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:30,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:30,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:30,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:30,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:30,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:30,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:30,046 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:02:30,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:02:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:02:30,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:02:30,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176141227] [2021-06-30 13:02:30,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176141227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:02:30,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:02:30,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-30 13:02:30,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336277701] [2021-06-30 13:02:30,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 13:02:30,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:02:30,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 13:02:30,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 13:02:30,050 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:02:30,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 2782 transitions, 104069 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:30,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:02:30,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:02:30,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:02:49,915 INFO L129 PetriNetUnfolder]: 13061/21498 cut-off events. [2021-06-30 13:02:49,915 INFO L130 PetriNetUnfolder]: For 2170011/2170011 co-relation queries the response was YES. [2021-06-30 13:02:50,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285893 conditions, 21498 events. 13061/21498 cut-off events. For 2170011/2170011 co-relation queries the response was YES. Maximal size of possible extension queue 1671. Compared 171163 event pairs, 1488 based on Foata normal form. 1/20635 useless extension candidates. Maximal degree in co-relation 281950. Up to 16958 conditions per place. [2021-06-30 13:02:51,145 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2685 selfloop transitions, 137 changer transitions 0/2832 dead transitions. [2021-06-30 13:02:51,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 2832 transitions, 112349 flow [2021-06-30 13:02:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 13:02:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 13:02:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 13:02:51,146 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 13:02:51,146 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 13:02:51,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 13:02:51,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:02:51,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 13:02:51,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:51,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:51,147 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:51,147 INFO L185 Difference]: Start difference. First operand has 615 places, 2782 transitions, 104069 flow. Second operand 7 states and 156 transitions. [2021-06-30 13:02:51,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 2832 transitions, 112349 flow [2021-06-30 13:02:58,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 2832 transitions, 111817 flow, removed 266 selfloop flow, removed 0 redundant places. [2021-06-30 13:02:58,647 INFO L241 Difference]: Finished difference. Result has 625 places, 2818 transitions, 106637 flow [2021-06-30 13:02:58,649 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=103537, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2782, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106637, PETRI_PLACES=625, PETRI_TRANSITIONS=2818} [2021-06-30 13:02:58,649 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 590 predicate places. [2021-06-30 13:02:58,649 INFO L482 AbstractCegarLoop]: Abstraction has has 625 places, 2818 transitions, 106637 flow [2021-06-30 13:02:58,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:58,649 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:02:58,649 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:02:58,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-30 13:02:58,649 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:02:58,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:02:58,650 INFO L82 PathProgramCache]: Analyzing trace with hash -754050428, now seen corresponding path program 8 times [2021-06-30 13:02:58,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:02:58,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213391573] [2021-06-30 13:02:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:02:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:02:58,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:02:58,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:02:58,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:02:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 13:02:58,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:02:58,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213391573] [2021-06-30 13:02:58,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213391573] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 13:02:58,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323069291] [2021-06-30 13:02:58,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-30 13:02:58,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 13:02:58,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 13:02:58,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 13:02:58,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 13:02:58,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:02:58,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:02:58,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:02:58,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:02:58,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:02:58,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:02:58,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:02:58,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:02:58,767 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 13:02:58,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:02:58,771 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 13:02:58,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,778 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 13:02:58,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:02:58,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:02:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 13:02:58,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323069291] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 13:02:58,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 13:02:58,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 13:02:58,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568341783] [2021-06-30 13:02:58,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 13:02:58,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:02:58,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 13:02:58,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 13:02:58,794 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:02:58,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 2818 transitions, 106637 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:02:58,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:02:58,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:02:58,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:03:18,591 INFO L129 PetriNetUnfolder]: 13112/21530 cut-off events. [2021-06-30 13:03:18,592 INFO L130 PetriNetUnfolder]: For 2238819/2238819 co-relation queries the response was YES. [2021-06-30 13:03:19,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288793 conditions, 21530 events. 13112/21530 cut-off events. For 2238819/2238819 co-relation queries the response was YES. Maximal size of possible extension queue 1675. Compared 170725 event pairs, 1556 based on Foata normal form. 1/20683 useless extension candidates. Maximal degree in co-relation 284845. Up to 17257 conditions per place. [2021-06-30 13:03:19,796 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2767 selfloop transitions, 73 changer transitions 0/2850 dead transitions. [2021-06-30 13:03:19,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 2850 transitions, 113996 flow [2021-06-30 13:03:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 13:03:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 13:03:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2021-06-30 13:03:19,797 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-06-30 13:03:19,798 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 154 transitions. [2021-06-30 13:03:19,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 154 transitions. [2021-06-30 13:03:19,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:03:19,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 154 transitions. [2021-06-30 13:03:19,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:19,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:19,798 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:19,798 INFO L185 Difference]: Start difference. First operand has 625 places, 2818 transitions, 106637 flow. Second operand 7 states and 154 transitions. [2021-06-30 13:03:19,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 2850 transitions, 113996 flow [2021-06-30 13:03:27,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 2850 transitions, 113216 flow, removed 390 selfloop flow, removed 0 redundant places. [2021-06-30 13:03:27,549 INFO L241 Difference]: Finished difference. Result has 632 places, 2838 transitions, 107699 flow [2021-06-30 13:03:27,550 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=105895, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2758, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=107699, PETRI_PLACES=632, PETRI_TRANSITIONS=2838} [2021-06-30 13:03:27,551 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 597 predicate places. [2021-06-30 13:03:27,551 INFO L482 AbstractCegarLoop]: Abstraction has has 632 places, 2838 transitions, 107699 flow [2021-06-30 13:03:27,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:27,551 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:03:27,551 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:03:27,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 13:03:27,753 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:03:27,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:03:27,753 INFO L82 PathProgramCache]: Analyzing trace with hash -507223444, now seen corresponding path program 9 times [2021-06-30 13:03:27,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:03:27,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831528939] [2021-06-30 13:03:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:03:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:03:27,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:27,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:03:27,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:27,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:03:27,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:27,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:03:27,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:27,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:03:27,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:27,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:03:27,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:27,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:03:27,798 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:03:27,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:03:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:03:27,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:03:27,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831528939] [2021-06-30 13:03:27,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831528939] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:03:27,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:03:27,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 13:03:27,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643125260] [2021-06-30 13:03:27,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 13:03:27,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:03:27,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 13:03:27,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 13:03:27,802 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:03:27,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 2838 transitions, 107699 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:27,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:03:27,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:03:27,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:03:49,327 INFO L129 PetriNetUnfolder]: 13376/21961 cut-off events. [2021-06-30 13:03:49,327 INFO L130 PetriNetUnfolder]: For 2357824/2357824 co-relation queries the response was YES. [2021-06-30 13:03:49,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297443 conditions, 21961 events. 13376/21961 cut-off events. For 2357824/2357824 co-relation queries the response was YES. Maximal size of possible extension queue 1707. Compared 174720 event pairs, 1611 based on Foata normal form. 1/21110 useless extension candidates. Maximal degree in co-relation 293481. Up to 17381 conditions per place. [2021-06-30 13:03:49,954 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2781 selfloop transitions, 149 changer transitions 0/2940 dead transitions. [2021-06-30 13:03:49,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 2940 transitions, 118986 flow [2021-06-30 13:03:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 13:03:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 13:03:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-06-30 13:03:49,955 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.68359375 [2021-06-30 13:03:49,955 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-06-30 13:03:49,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-06-30 13:03:49,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:03:49,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-06-30 13:03:49,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:49,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:49,955 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:49,955 INFO L185 Difference]: Start difference. First operand has 632 places, 2838 transitions, 107699 flow. Second operand 8 states and 175 transitions. [2021-06-30 13:03:49,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 2940 transitions, 118986 flow [2021-06-30 13:03:56,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 639 places, 2940 transitions, 117638 flow, removed 674 selfloop flow, removed 0 redundant places. [2021-06-30 13:03:56,963 INFO L241 Difference]: Finished difference. Result has 645 places, 2926 transitions, 112410 flow [2021-06-30 13:03:56,964 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=106915, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2838, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=112410, PETRI_PLACES=645, PETRI_TRANSITIONS=2926} [2021-06-30 13:03:56,965 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 610 predicate places. [2021-06-30 13:03:56,965 INFO L482 AbstractCegarLoop]: Abstraction has has 645 places, 2926 transitions, 112410 flow [2021-06-30 13:03:56,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:56,965 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:03:56,965 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:03:56,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-30 13:03:56,965 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:03:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:03:56,965 INFO L82 PathProgramCache]: Analyzing trace with hash -335412846, now seen corresponding path program 10 times [2021-06-30 13:03:56,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:03:56,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637815936] [2021-06-30 13:03:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:03:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:03:56,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:56,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:03:56,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:56,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:03:56,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:56,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:03:57,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:03:57,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:57,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:03:57,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:03:57,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:03:57,025 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:03:57,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:03:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:03:57,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:03:57,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637815936] [2021-06-30 13:03:57,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637815936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:03:57,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:03:57,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 13:03:57,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307143668] [2021-06-30 13:03:57,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 13:03:57,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:03:57,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 13:03:57,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 13:03:57,030 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:03:57,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 2926 transitions, 112410 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:03:57,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:03:57,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:03:57,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:04:15,109 INFO L129 PetriNetUnfolder]: 13496/22135 cut-off events. [2021-06-30 13:04:15,110 INFO L130 PetriNetUnfolder]: For 2454787/2454787 co-relation queries the response was YES. [2021-06-30 13:04:15,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303208 conditions, 22135 events. 13496/22135 cut-off events. For 2454787/2454787 co-relation queries the response was YES. Maximal size of possible extension queue 1713. Compared 176127 event pairs, 1540 based on Foata normal form. 1/21271 useless extension candidates. Maximal degree in co-relation 299170. Up to 17345 conditions per place. [2021-06-30 13:04:15,877 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2757 selfloop transitions, 217 changer transitions 0/2984 dead transitions. [2021-06-30 13:04:15,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 2984 transitions, 122179 flow [2021-06-30 13:04:15,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 13:04:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-30 13:04:15,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-06-30 13:04:15,878 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.68359375 [2021-06-30 13:04:15,878 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-06-30 13:04:15,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-06-30 13:04:15,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:04:15,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-06-30 13:04:15,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:15,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:15,879 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:15,879 INFO L185 Difference]: Start difference. First operand has 645 places, 2926 transitions, 112410 flow. Second operand 8 states and 175 transitions. [2021-06-30 13:04:15,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 2984 transitions, 122179 flow [2021-06-30 13:04:22,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 2984 transitions, 120343 flow, removed 918 selfloop flow, removed 0 redundant places. [2021-06-30 13:04:22,886 INFO L241 Difference]: Finished difference. Result has 657 places, 2970 transitions, 115144 flow [2021-06-30 13:04:22,887 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=111338, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=115144, PETRI_PLACES=657, PETRI_TRANSITIONS=2970} [2021-06-30 13:04:22,887 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 622 predicate places. [2021-06-30 13:04:22,887 INFO L482 AbstractCegarLoop]: Abstraction has has 657 places, 2970 transitions, 115144 flow [2021-06-30 13:04:22,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:22,887 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:04:22,887 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:04:22,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-30 13:04:22,887 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:04:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:04:22,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1322197922, now seen corresponding path program 11 times [2021-06-30 13:04:22,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:04:22,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013695502] [2021-06-30 13:04:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:04:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:04:22,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:22,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:04:22,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:22,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,932 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:04:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:04:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 13:04:22,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:04:22,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013695502] [2021-06-30 13:04:22,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013695502] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 13:04:22,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427219697] [2021-06-30 13:04:22,934 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-30 13:04:22,962 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 13:04:22,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 13:04:22,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 13:04:22,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 13:04:22,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:04:22,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:04:22,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:04:22,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 13:04:22,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:22,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:22,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:22,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:04:22,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:04:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:04:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:22,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:04:22,999 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-30 13:04:23,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:23,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:23,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:23,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:23,002 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-30 13:04:23,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,012 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-30 13:04:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:23,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 13:04:23,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427219697] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 13:04:23,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 13:04:23,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 13:04:23,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24000926] [2021-06-30 13:04:23,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 13:04:23,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:04:23,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 13:04:23,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 13:04:23,026 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:04:23,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 2970 transitions, 115144 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:23,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:04:23,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:04:23,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:04:40,962 INFO L129 PetriNetUnfolder]: 13553/22262 cut-off events. [2021-06-30 13:04:40,962 INFO L130 PetriNetUnfolder]: For 2494934/2494934 co-relation queries the response was YES. [2021-06-30 13:04:41,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305748 conditions, 22262 events. 13553/22262 cut-off events. For 2494934/2494934 co-relation queries the response was YES. Maximal size of possible extension queue 1730. Compared 177673 event pairs, 1539 based on Foata normal form. 1/21388 useless extension candidates. Maximal degree in co-relation 302242. Up to 17608 conditions per place. [2021-06-30 13:04:41,826 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 2885 selfloop transitions, 109 changer transitions 0/3004 dead transitions. [2021-06-30 13:04:41,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 3004 transitions, 122918 flow [2021-06-30 13:04:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 13:04:41,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-30 13:04:41,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2021-06-30 13:04:41,827 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-06-30 13:04:41,827 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 156 transitions. [2021-06-30 13:04:41,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 156 transitions. [2021-06-30 13:04:41,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 13:04:41,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 156 transitions. [2021-06-30 13:04:41,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:41,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:41,828 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:41,828 INFO L185 Difference]: Start difference. First operand has 657 places, 2970 transitions, 115144 flow. Second operand 7 states and 156 transitions. [2021-06-30 13:04:41,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 3004 transitions, 122918 flow [2021-06-30 13:04:48,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 663 places, 3004 transitions, 121942 flow, removed 488 selfloop flow, removed 0 redundant places. [2021-06-30 13:04:49,003 INFO L241 Difference]: Finished difference. Result has 665 places, 2990 transitions, 116215 flow [2021-06-30 13:04:49,004 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=114168, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2874, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116215, PETRI_PLACES=665, PETRI_TRANSITIONS=2990} [2021-06-30 13:04:49,004 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 630 predicate places. [2021-06-30 13:04:49,004 INFO L482 AbstractCegarLoop]: Abstraction has has 665 places, 2990 transitions, 116215 flow [2021-06-30 13:04:49,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:49,005 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 13:04:49,005 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 13:04:49,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-06-30 13:04:49,209 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 13:04:49,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 13:04:49,209 INFO L82 PathProgramCache]: Analyzing trace with hash -751999462, now seen corresponding path program 12 times [2021-06-30 13:04:49,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 13:04:49,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889964949] [2021-06-30 13:04:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 13:04:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 13:04:49,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:49,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:49,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:49,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:49,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:49,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:49,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:49,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-30 13:04:49,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:49,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-30 13:04:49,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 13:04:49,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 13:04:49,251 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 13:04:49,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 13:04:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 13:04:49,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 13:04:49,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889964949] [2021-06-30 13:04:49,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889964949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 13:04:49,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 13:04:49,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-30 13:04:49,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164629760] [2021-06-30 13:04:49,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 13:04:49,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 13:04:49,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 13:04:49,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 13:04:49,254 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2021-06-30 13:04:49,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 665 places, 2990 transitions, 116215 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 13:04:49,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 13:04:49,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2021-06-30 13:04:49,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 13:05:09,154 INFO L129 PetriNetUnfolder]: 13667/22418 cut-off events. [2021-06-30 13:05:09,155 INFO L130 PetriNetUnfolder]: For 2591927/2591927 co-relation queries the response was YES.