/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:55:33,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:55:33,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:55:33,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:55:33,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:55:33,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:55:33,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:55:33,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:55:33,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:55:33,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:55:33,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:55:33,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:55:33,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:55:33,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:55:33,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:55:33,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:55:33,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:55:33,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:55:33,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:55:33,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:55:33,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:55:33,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:55:33,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:55:33,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:55:33,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:55:33,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:55:33,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:55:33,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:55:33,193 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:55:33,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:55:33,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:55:33,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:55:33,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:55:33,248 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:55:33,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:55:33,248 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:55:33,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:55:33,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:55:33,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:55:33,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:55:33,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:55:33,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:55:33,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:55:33,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:55:33,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:55:33,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:55:33,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:55:33,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:55:33,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:55:33,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:55:33,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:55:33,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:55:33,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:55:33,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:55:33,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:55:33,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:55:33,253 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:55:33,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:55:33,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:55:33,254 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:55:33,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:55:33,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:55:33,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:55:33,659 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 03:55:33,660 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 03:55:33,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl [2021-04-29 03:55:33,662 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl' [2021-04-29 03:55:33,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:55:33,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 03:55:33,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:55:33,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:55:33,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:55:33,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:55:33,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:55:33,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:55:33,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:55:33,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/1) ... [2021-04-29 03:55:33,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:55:33,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:55:33,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:55:33,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:55:33,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (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 [2021-04-29 03:55:33,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-04-29 03:55:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:55:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:55:33,920 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 03:55:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:55:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:55:33,922 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:55:34,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:55:34,158 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 03:55:34,161 INFO L202 PluginConnector]: Adding new model ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:55:34 BoogieIcfgContainer [2021-04-29 03:55:34,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:55:34,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:55:34,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:55:34,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:55:34,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:55:33" (1/2) ... [2021-04-29 03:55:34,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bb04c7 and model type ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:55:34, skipping insertion in model container [2021-04-29 03:55:34,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:55:34" (2/2) ... [2021-04-29 03:55:34,181 INFO L111 eAbstractionObserver]: Analyzing ICFG ForkJoinExplained.bpl [2021-04-29 03:55:34,193 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:55:34,203 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-04-29 03:55:34,204 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:55:34,253 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,254 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,254 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,257 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,257 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,258 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,259 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,261 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,262 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,262 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,264 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,266 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,267 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,270 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,274 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,297 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:55:34,317 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-29 03:55:34,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 03:55:34,397 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:55:34,397 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:55:34,398 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:55:34,398 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:55:34,399 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:55:34,399 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:55:34,399 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:55:34,399 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:55:34,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 84 flow [2021-04-29 03:55:34,470 INFO L129 PetriNetUnfolder]: 3/33 cut-off events. [2021-04-29 03:55:34,471 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 03:55:34,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 33 events. 3/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 23. Up to 3 conditions per place. [2021-04-29 03:55:34,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 31 transitions, 84 flow [2021-04-29 03:55:34,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 72 flow [2021-04-29 03:55:34,486 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:34,506 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 27 transitions, 72 flow [2021-04-29 03:55:34,514 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 27 transitions, 72 flow [2021-04-29 03:55:34,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 72 flow [2021-04-29 03:55:34,541 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-04-29 03:55:34,542 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 03:55:34,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 31 events. 3/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 23. Up to 3 conditions per place. [2021-04-29 03:55:34,548 INFO L146 LiptonReduction]: Number of co-enabled transitions 252 [2021-04-29 03:55:35,430 INFO L158 LiptonReduction]: Checked pairs total: 344 [2021-04-29 03:55:35,431 INFO L160 LiptonReduction]: Total number of compositions: 23 [2021-04-29 03:55:35,434 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 950 [2021-04-29 03:55:35,449 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-04-29 03:55:35,450 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 03:55:35,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:35,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 03:55:35,451 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:35,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:35,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1317683480, now seen corresponding path program 1 times [2021-04-29 03:55:35,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:35,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636328638] [2021-04-29 03:55:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:35,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:35,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:35,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:35,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:35,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-29 03:55:35,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:35,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636328638] [2021-04-29 03:55:35,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:35,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 03:55:35,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216710050] [2021-04-29 03:55:35,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 03:55:35,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:35,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 03:55:35,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 03:55:35,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2021-04-29 03:55:35,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 68 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:35,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:35,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2021-04-29 03:55:35,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:35,913 INFO L129 PetriNetUnfolder]: 33/114 cut-off events. [2021-04-29 03:55:35,913 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-04-29 03:55:35,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 114 events. 33/114 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 599 event pairs, 4 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 173. Up to 79 conditions per place. [2021-04-29 03:55:35,916 INFO L132 encePairwiseOnDemand]: 42/54 looper letters, 10 selfloop transitions, 14 changer transitions 6/40 dead transitions. [2021-04-29 03:55:35,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 156 flow [2021-04-29 03:55:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 03:55:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 03:55:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2021-04-29 03:55:35,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.562962962962963 [2021-04-29 03:55:35,933 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 152 transitions. [2021-04-29 03:55:35,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 152 transitions. [2021-04-29 03:55:35,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:35,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 152 transitions. [2021-04-29 03:55:35,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:35,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:35,947 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:35,950 INFO L185 Difference]: Start difference. First operand has 30 places, 25 transitions, 68 flow. Second operand 5 states and 152 transitions. [2021-04-29 03:55:35,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 156 flow [2021-04-29 03:55:35,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 40 transitions, 144 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 03:55:35,958 INFO L241 Difference]: Finished difference. Result has 32 places, 32 transitions, 133 flow [2021-04-29 03:55:35,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=133, PETRI_PLACES=32, PETRI_TRANSITIONS=32} [2021-04-29 03:55:35,961 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2021-04-29 03:55:35,962 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:35,962 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions, 133 flow [2021-04-29 03:55:35,962 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 32 transitions, 133 flow [2021-04-29 03:55:35,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 32 transitions, 133 flow [2021-04-29 03:55:35,975 INFO L129 PetriNetUnfolder]: 14/73 cut-off events. [2021-04-29 03:55:35,976 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-04-29 03:55:35,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 73 events. 14/73 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 376 event pairs, 3 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 104. Up to 35 conditions per place. [2021-04-29 03:55:35,978 INFO L146 LiptonReduction]: Number of co-enabled transitions 134 [2021-04-29 03:55:35,982 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:35,982 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:35,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 03:55:35,985 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 32 transitions, 133 flow [2021-04-29 03:55:35,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:35,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:35,985 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 03:55:35,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:55:35,986 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:35,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1318404275, now seen corresponding path program 1 times [2021-04-29 03:55:35,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:35,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375547013] [2021-04-29 03:55:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:36,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:55:36,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:55:36,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,025 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-29 03:55:36,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:36,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375547013] [2021-04-29 03:55:36,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:36,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 03:55:36,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010842493] [2021-04-29 03:55:36,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 03:55:36,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:36,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 03:55:36,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 03:55:36,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 54 [2021-04-29 03:55:36,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 32 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:36,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 54 [2021-04-29 03:55:36,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:36,133 INFO L129 PetriNetUnfolder]: 31/90 cut-off events. [2021-04-29 03:55:36,133 INFO L130 PetriNetUnfolder]: For 51/62 co-relation queries the response was YES. [2021-04-29 03:55:36,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 90 events. 31/90 cut-off events. For 51/62 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 386 event pairs, 2 based on Foata normal form. 9/62 useless extension candidates. Maximal degree in co-relation 101. Up to 39 conditions per place. [2021-04-29 03:55:36,135 INFO L132 encePairwiseOnDemand]: 44/54 looper letters, 11 selfloop transitions, 13 changer transitions 5/42 dead transitions. [2021-04-29 03:55:36,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 216 flow [2021-04-29 03:55:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 03:55:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 03:55:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2021-04-29 03:55:36,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2021-04-29 03:55:36,139 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 220 transitions. [2021-04-29 03:55:36,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 220 transitions. [2021-04-29 03:55:36,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:36,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 220 transitions. [2021-04-29 03:55:36,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 54.0) internal successors, (378), 7 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,145 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 54.0) internal successors, (378), 7 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,145 INFO L185 Difference]: Start difference. First operand has 31 places, 32 transitions, 133 flow. Second operand 6 states and 220 transitions. [2021-04-29 03:55:36,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 216 flow [2021-04-29 03:55:36,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:55:36,149 INFO L241 Difference]: Finished difference. Result has 34 places, 33 transitions, 174 flow [2021-04-29 03:55:36,150 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2021-04-29 03:55:36,150 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2021-04-29 03:55:36,150 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:36,151 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 33 transitions, 174 flow [2021-04-29 03:55:36,151 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 33 transitions, 174 flow [2021-04-29 03:55:36,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 33 transitions, 174 flow [2021-04-29 03:55:36,163 INFO L129 PetriNetUnfolder]: 16/60 cut-off events. [2021-04-29 03:55:36,164 INFO L130 PetriNetUnfolder]: For 52/58 co-relation queries the response was YES. [2021-04-29 03:55:36,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 60 events. 16/60 cut-off events. For 52/58 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 253 event pairs, 1 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 113. Up to 31 conditions per place. [2021-04-29 03:55:36,165 INFO L146 LiptonReduction]: Number of co-enabled transitions 54 [2021-04-29 03:55:36,170 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:36,170 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:36,170 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-29 03:55:36,172 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 174 flow [2021-04-29 03:55:36,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:36,173 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 03:55:36,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:55:36,174 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:36,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1318402339, now seen corresponding path program 1 times [2021-04-29 03:55:36,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:36,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620348759] [2021-04-29 03:55:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:55:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:55:36,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:55:36,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:36,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620348759] [2021-04-29 03:55:36,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:36,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 03:55:36,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253728954] [2021-04-29 03:55:36,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:55:36,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:36,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:55:36,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:55:36,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 54 [2021-04-29 03:55:36,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:36,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 54 [2021-04-29 03:55:36,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:36,213 INFO L129 PetriNetUnfolder]: 10/39 cut-off events. [2021-04-29 03:55:36,213 INFO L130 PetriNetUnfolder]: For 28/32 co-relation queries the response was YES. [2021-04-29 03:55:36,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 39 events. 10/39 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 150 event pairs, 0 based on Foata normal form. 9/36 useless extension candidates. Maximal degree in co-relation 110. Up to 24 conditions per place. [2021-04-29 03:55:36,214 INFO L132 encePairwiseOnDemand]: 51/54 looper letters, 0 selfloop transitions, 1 changer transitions 6/22 dead transitions. [2021-04-29 03:55:36,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 123 flow [2021-04-29 03:55:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:55:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:55:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2021-04-29 03:55:36,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2021-04-29 03:55:36,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 153 transitions. [2021-04-29 03:55:36,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 153 transitions. [2021-04-29 03:55:36,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:36,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 153 transitions. [2021-04-29 03:55:36,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.0) internal successors, (153), 3 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) [2021-04-29 03:55:36,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,221 INFO L185 Difference]: Start difference. First operand has 31 places, 33 transitions, 174 flow. Second operand 3 states and 153 transitions. [2021-04-29 03:55:36,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 123 flow [2021-04-29 03:55:36,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 104 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-04-29 03:55:36,223 INFO L241 Difference]: Finished difference. Result has 24 places, 16 transitions, 76 flow [2021-04-29 03:55:36,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2021-04-29 03:55:36,224 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, -6 predicate places. [2021-04-29 03:55:36,224 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:36,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 16 transitions, 76 flow [2021-04-29 03:55:36,225 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 16 transitions, 76 flow [2021-04-29 03:55:36,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 16 transitions, 76 flow [2021-04-29 03:55:36,230 INFO L129 PetriNetUnfolder]: 4/21 cut-off events. [2021-04-29 03:55:36,230 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:55:36,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 21 events. 4/21 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 47 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 45. Up to 12 conditions per place. [2021-04-29 03:55:36,231 INFO L146 LiptonReduction]: Number of co-enabled transitions 10 [2021-04-29 03:55:36,233 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:36,233 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:36,233 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 03:55:36,235 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 76 flow [2021-04-29 03:55:36,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:36,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:55:36,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 03:55:36,236 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:36,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:36,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2101485465, now seen corresponding path program 1 times [2021-04-29 03:55:36,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:36,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413814744] [2021-04-29 03:55:36,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:36,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:36,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:36,322 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-29 03:55:36,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:36,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413814744] [2021-04-29 03:55:36,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:36,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:55:36,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385031095] [2021-04-29 03:55:36,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 03:55:36,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:36,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 03:55:36,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 03:55:36,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2021-04-29 03:55:36,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 76 flow. Second operand has 7 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) [2021-04-29 03:55:36,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:36,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2021-04-29 03:55:36,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:36,435 INFO L129 PetriNetUnfolder]: 4/28 cut-off events. [2021-04-29 03:55:36,435 INFO L130 PetriNetUnfolder]: For 10/26 co-relation queries the response was YES. [2021-04-29 03:55:36,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 28 events. 4/28 cut-off events. For 10/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 88 event pairs, 0 based on Foata normal form. 4/23 useless extension candidates. Maximal degree in co-relation 63. Up to 15 conditions per place. [2021-04-29 03:55:36,437 INFO L132 encePairwiseOnDemand]: 45/54 looper letters, 3 selfloop transitions, 11 changer transitions 5/20 dead transitions. [2021-04-29 03:55:36,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 134 flow [2021-04-29 03:55:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 03:55:36,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 03:55:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 168 transitions. [2021-04-29 03:55:36,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2021-04-29 03:55:36,441 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 168 transitions. [2021-04-29 03:55:36,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 168 transitions. [2021-04-29 03:55:36,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:36,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 168 transitions. [2021-04-29 03:55:36,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,446 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,446 INFO L185 Difference]: Start difference. First operand has 20 places, 16 transitions, 76 flow. Second operand 7 states and 168 transitions. [2021-04-29 03:55:36,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 134 flow [2021-04-29 03:55:36,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 03:55:36,448 INFO L241 Difference]: Finished difference. Result has 26 places, 15 transitions, 96 flow [2021-04-29 03:55:36,448 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2021-04-29 03:55:36,449 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2021-04-29 03:55:36,449 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:36,449 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 15 transitions, 96 flow [2021-04-29 03:55:36,449 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 15 transitions, 96 flow [2021-04-29 03:55:36,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 15 transitions, 96 flow [2021-04-29 03:55:36,458 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-04-29 03:55:36,461 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-04-29 03:55:36,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 25 events. 3/25 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 67 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 59. Up to 11 conditions per place. [2021-04-29 03:55:36,462 INFO L146 LiptonReduction]: Number of co-enabled transitions 6 [2021-04-29 03:55:36,463 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:36,464 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:36,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 03:55:36,468 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 96 flow [2021-04-29 03:55:36,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-04-29 03:55:36,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:36,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:55:36,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 03:55:36,474 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:36,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:36,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2079142215, now seen corresponding path program 2 times [2021-04-29 03:55:36,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:36,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955165323] [2021-04-29 03:55:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:36,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:36,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 03:55:36,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:36,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-29 03:55:36,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:36,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955165323] [2021-04-29 03:55:36,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:36,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:55:36,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919407693] [2021-04-29 03:55:36,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 03:55:36,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:36,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 03:55:36,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 03:55:36,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2021-04-29 03:55:36,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 96 flow. Second operand has 7 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) [2021-04-29 03:55:36,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:36,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2021-04-29 03:55:36,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:36,655 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-29 03:55:36,656 INFO L130 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2021-04-29 03:55:36,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 20 events. 0/20 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 43 event pairs, 0 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-04-29 03:55:36,656 INFO L132 encePairwiseOnDemand]: 45/54 looper letters, 2 selfloop transitions, 6 changer transitions 4/13 dead transitions. [2021-04-29 03:55:36,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 104 flow [2021-04-29 03:55:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 03:55:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 03:55:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2021-04-29 03:55:36,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-04-29 03:55:36,659 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 162 transitions. [2021-04-29 03:55:36,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 162 transitions. [2021-04-29 03:55:36,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:36,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 162 transitions. [2021-04-29 03:55:36,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,663 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,663 INFO L185 Difference]: Start difference. First operand has 24 places, 15 transitions, 96 flow. Second operand 7 states and 162 transitions. [2021-04-29 03:55:36,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 104 flow [2021-04-29 03:55:36,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 13 transitions, 84 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-29 03:55:36,665 INFO L241 Difference]: Finished difference. Result has 25 places, 9 transitions, 50 flow [2021-04-29 03:55:36,665 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=50, PETRI_PLACES=25, PETRI_TRANSITIONS=9} [2021-04-29 03:55:36,666 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2021-04-29 03:55:36,666 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:36,666 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 9 transitions, 50 flow [2021-04-29 03:55:36,666 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 9 transitions, 50 flow [2021-04-29 03:55:36,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 9 transitions, 50 flow [2021-04-29 03:55:36,670 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-29 03:55:36,670 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 03:55:36,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 15 events. 0/15 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-04-29 03:55:36,671 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:55:36,672 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:36,672 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:36,672 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-04-29 03:55:36,673 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 9 transitions, 50 flow [2021-04-29 03:55:36,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-04-29 03:55:36,674 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:36,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:55:36,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 03:55:36,675 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:36,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:36,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2079133845, now seen corresponding path program 3 times [2021-04-29 03:55:36,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:36,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401188507] [2021-04-29 03:55:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:36,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:36,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 03:55:36,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:36,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 03:55:36,744 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-29 03:55:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:55:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:36,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401188507] [2021-04-29 03:55:36,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:36,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:55:36,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426273716] [2021-04-29 03:55:36,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 03:55:36,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:36,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 03:55:36,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 03:55:36,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2021-04-29 03:55:36,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 9 transitions, 50 flow. Second operand has 7 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) [2021-04-29 03:55:36,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:36,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2021-04-29 03:55:36,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:36,781 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-04-29 03:55:36,781 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-29 03:55:36,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 12 events. 0/12 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 3/13 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-04-29 03:55:36,782 INFO L132 encePairwiseOnDemand]: 46/54 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2021-04-29 03:55:36,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 8 transitions, 58 flow [2021-04-29 03:55:36,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 03:55:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 03:55:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-04-29 03:55:36,784 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41005291005291006 [2021-04-29 03:55:36,784 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-04-29 03:55:36,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-04-29 03:55:36,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:36,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-04-29 03:55:36,786 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) [2021-04-29 03:55:36,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,787 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:55:36,788 INFO L185 Difference]: Start difference. First operand has 22 places, 9 transitions, 50 flow. Second operand 7 states and 155 transitions. [2021-04-29 03:55:36,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 8 transitions, 58 flow [2021-04-29 03:55:36,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 8 transitions, 38 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-04-29 03:55:36,789 INFO L241 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2021-04-29 03:55:36,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2021-04-29 03:55:36,790 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, -10 predicate places. [2021-04-29 03:55:36,790 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:36,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 0 transitions, 0 flow [2021-04-29 03:55:36,790 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 0 transitions, 0 flow [2021-04-29 03:55:36,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:55:36,791 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:55:36,791 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:36,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:55:36,791 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:55:36,792 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:36,792 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:36,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 03:55:36,793 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:55:36,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-04-29 03:55:36,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 03:55:36,799 INFO L202 PluginConnector]: Adding new model ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:55:36 BasicIcfg [2021-04-29 03:55:36,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:55:36,800 INFO L168 Benchmark]: Toolchain (without parser) took 3092.71 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 125.7 MB in the end (delta: 146.1 MB). Peak memory consumption was 145.9 MB. Max. memory is 16.0 GB. [2021-04-29 03:55:36,801 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 272.7 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:55:36,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.34 ms. Allocated memory is still 302.0 MB. Free memory was 268.7 MB in the beginning and 267.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:55:36,802 INFO L168 Benchmark]: Boogie Preprocessor took 16.89 ms. Allocated memory is still 302.0 MB. Free memory was 267.3 MB in the beginning and 266.4 MB in the end (delta: 878.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:55:36,803 INFO L168 Benchmark]: RCFGBuilder took 346.71 ms. Allocated memory is still 302.0 MB. Free memory was 266.3 MB in the beginning and 281.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.0 GB. [2021-04-29 03:55:36,804 INFO L168 Benchmark]: TraceAbstraction took 2631.81 ms. Allocated memory is still 302.0 MB. Free memory was 281.0 MB in the beginning and 125.7 MB in the end (delta: 155.3 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.0 GB. [2021-04-29 03:55:36,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 272.7 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.34 ms. Allocated memory is still 302.0 MB. Free memory was 268.7 MB in the beginning and 267.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.89 ms. Allocated memory is still 302.0 MB. Free memory was 267.3 MB in the beginning and 266.4 MB in the end (delta: 878.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 346.71 ms. Allocated memory is still 302.0 MB. Free memory was 266.3 MB in the beginning and 281.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2631.81 ms. Allocated memory is still 302.0 MB. Free memory was 281.0 MB in the beginning and 125.7 MB in the end (delta: 155.3 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 917.2ms, 30 PlacesBefore, 30 PlacesAfterwards, 27 TransitionsBefore, 25 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 23 TotalNumberOfCompositions, 344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 278, positive: 270, positive conditional: 270, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 219, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 219, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 219, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 278, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 219, unknown conditional: 219, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1ms, 32 PlacesBefore, 31 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.8ms, 34 PlacesBefore, 31 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 24 PlacesBefore, 20 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3ms, 26 PlacesBefore, 24 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7ms, 25 PlacesBefore, 22 PlacesAfterwards, 9 TransitionsBefore, 9 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6ms, 20 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 215, Positive conditional cache size: 215, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - PositiveResult [Line: 70]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 55]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 61]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2409.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 527.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1042.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 45 SDslu, 25 SDs, 0 SdLazy, 198 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 183.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 197.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=2, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.2ms SsaConstructionTime, 67.3ms SatisfiabilityAnalysisTime, 410.8ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...