/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/regression/MirabelleConcurrentIncrement.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:36:22,793 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:36:22,853 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:36:22,877 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:36:22,877 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:36:22,878 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:36:22,879 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:36:22,879 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:36:22,880 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:36:22,883 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:36:22,884 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:36:22,884 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:36:22,884 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:36:22,885 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:36:22,885 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:36:22,885 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:36:22,885 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:36:22,886 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:36:22,886 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:36:22,886 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:36:22,886 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:36:22,887 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:36:22,887 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:36:22,888 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:36:22,888 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:36:22,888 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:36:22,888 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:36:22,888 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:36:22,888 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:36:22,888 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:36:22,889 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:36:22,890 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:36:22,890 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:36:22,891 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:36:22,891 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:36:23,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:36:23,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:36:23,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:36:23,082 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:36:23,083 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:36:23,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/MirabelleConcurrentIncrement.bpl [2023-10-12 17:36:23,085 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/MirabelleConcurrentIncrement.bpl' [2023-10-12 17:36:23,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:36:23,105 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:36:23,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:36:23,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:36:23,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:36:23,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,124 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:36:23,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:36:23,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:36:23,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:36:23,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:36:23,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:36:23,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:36:23,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:36:23,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:36:23,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/1) ... [2023-10-12 17:36:23,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:23,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:23,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:36:23,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:36:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:36:23,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:36:23,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:36:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:36:23,192 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:36:23,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:36:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:36:23,192 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:36:23,193 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:36:23,226 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:36:23,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:36:23,317 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:36:23,321 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:36:23,322 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:36:23,323 INFO L201 PluginConnector]: Adding new model MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:36:23 BoogieIcfgContainer [2023-10-12 17:36:23,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:36:23,324 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:36:23,324 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:36:23,327 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:36:23,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:36:23,327 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:23" (1/2) ... [2023-10-12 17:36:23,328 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e4b07d and model type MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:36:23, skipping insertion in model container [2023-10-12 17:36:23,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:36:23,329 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:36:23" (2/2) ... [2023-10-12 17:36:23,335 INFO L332 chiAutomizerObserver]: Analyzing ICFG MirabelleConcurrentIncrement.bpl [2023-10-12 17:36:23,378 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:36:23,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 22 transitions, 66 flow [2023-10-12 17:36:23,415 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events. [2023-10-12 17:36:23,416 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:36:23,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 18 events. 3/18 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 13. Up to 3 conditions per place. [2023-10-12 17:36:23,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 22 transitions, 66 flow [2023-10-12 17:36:23,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 18 transitions, 54 flow [2023-10-12 17:36:23,424 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:36:23,433 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 18 transitions, 54 flow [2023-10-12 17:36:23,435 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 18 transitions, 54 flow [2023-10-12 17:36:23,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 54 flow [2023-10-12 17:36:23,455 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events. [2023-10-12 17:36:23,456 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:36:23,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 18 events. 3/18 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 13. Up to 3 conditions per place. [2023-10-12 17:36:23,456 INFO L119 LiptonReduction]: Number of co-enabled transitions 56 [2023-10-12 17:36:23,562 INFO L134 LiptonReduction]: Checked pairs total: 48 [2023-10-12 17:36:23,562 INFO L136 LiptonReduction]: Total number of compositions: 5 [2023-10-12 17:36:23,572 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:36:23,572 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:36:23,572 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:36:23,572 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:36:23,572 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:36:23,572 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:36:23,573 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:36:23,573 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:36:23,573 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 16 places, 13 transitions, 44 flow [2023-10-12 17:36:23,575 ERROR L47 etriNetUnfolderRabin]: [1:1A:[31] $Ultimate##0-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[][5], 2:2A:[48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0][3]][3:3A:[59] L31-->L31: Formula: (and (< v_x_11 v_n_11) (= (+ v_x_11 1) v_x_10)) InVars {n=v_n_11, x=v_x_11} OutVars{n=v_n_11, x=v_x_10} AuxVars[] AssignedVars[x][11]] [2023-10-12 17:36:23,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:36:23,577 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:36:23,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:36:23,577 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:36:23,579 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:36:23,579 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 16 places, 13 transitions, 44 flow [2023-10-12 17:36:23,580 ERROR L47 etriNetUnfolderRabin]: [1:1A:[31] $Ultimate##0-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[][5], 2:2A:[48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0][3]][3:3A:[59] L31-->L31: Formula: (and (< v_x_11 v_n_11) (= (+ v_x_11 1) v_x_10)) InVars {n=v_n_11, x=v_x_11} OutVars{n=v_n_11, x=v_x_10} AuxVars[] AssignedVars[x][11]] [2023-10-12 17:36:23,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:36:23,580 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:36:23,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:36:23,580 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:36:23,583 INFO L748 eck$LassoCheckResult]: Stem: 27#[$Ultimate##0]true [31] $Ultimate##0-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[] 29#[L18]true [48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 31#[L31, L18-1]true [2023-10-12 17:36:23,583 INFO L750 eck$LassoCheckResult]: Loop: 31#[L31, L18-1]true [59] L31-->L31: Formula: (and (< v_x_11 v_n_11) (= (+ v_x_11 1) v_x_10)) InVars {n=v_n_11, x=v_x_11} OutVars{n=v_n_11, x=v_x_10} AuxVars[] AssignedVars[x] 31#[L31, L18-1]true [2023-10-12 17:36:23,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1970, now seen corresponding path program 1 times [2023-10-12 17:36:23,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:23,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661903668] [2023-10-12 17:36:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:23,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:23,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:23,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash 90, now seen corresponding path program 1 times [2023-10-12 17:36:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122451153] [2023-10-12 17:36:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:23,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:23,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:23,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:23,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash 61129, now seen corresponding path program 1 times [2023-10-12 17:36:23,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:23,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90836137] [2023-10-12 17:36:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:23,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:23,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:23,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:23,699 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:36:23,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:36:23,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:36:23,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:36:23,700 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:36:23,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:36:23,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:36:23,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration1_Loop [2023-10-12 17:36:23,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:36:23,700 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:36:23,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:23,740 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:36:23,740 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:36:23,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:23,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:23,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:36:23,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:36:23,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:36:23,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:23,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:23,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:23,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:36:23,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:36:23,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:36:23,876 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:36:23,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:23,882 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:36:23,882 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:36:23,882 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:36:23,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:36:23,882 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:36:23,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:36:23,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:36:23,882 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration1_Loop [2023-10-12 17:36:23,882 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:36:23,882 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:36:23,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:23,917 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:36:23,920 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:36:23,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:23,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:23,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:36:23,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:36:23,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:36:23,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:36:23,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:36:23,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:36:23,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:36:23,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:36:23,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:36:23,963 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:36:23,982 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:36:23,983 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:36:23,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:23,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:24,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:24,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:36:24,441 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:36:24,441 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:36:24,441 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:36:24,442 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, n) = -1*x + 1*n Supporting invariants [] [2023-10-12 17:36:24,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-10-12 17:36:24,447 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:36:24,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:36:24,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:36:24,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:36:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:36:24,484 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:36:24,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:36:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:36:24,505 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:36:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:36:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:36:24,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2023-10-12 17:36:24,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:36:24,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:24,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:36:24,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:24,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:36:24,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:24,577 INFO L430 stractBuchiCegarLoop]: Abstraction has has 19 places, 39 transitions, 210 flow [2023-10-12 17:36:24,577 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:36:24,577 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 19 places, 39 transitions, 210 flow [2023-10-12 17:36:24,578 ERROR L47 etriNetUnfolderRabin]: [1:1A:[31] $Ultimate##0-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[][17], 2:2A:[48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0][11], 4:3A:[51] L18-1-->L39: Formula: (= v_T2Thread1of1ForFork1_thidvar0_2 2) InVars {} OutVars{T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[T2Thread1of1ForFork1_thidvar0][0]][5:4A:[57] L39-->L39: Formula: (and (= v_y_10 (+ v_y_11 1)) (< v_y_11 v_n_7)) InVars {n=v_n_7, y=v_y_11} OutVars{n=v_n_7, y=v_y_10} AuxVars[] AssignedVars[y][28]] [2023-10-12 17:36:24,579 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:36:24,579 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:36:24,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:36:24,579 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:36:24,579 INFO L748 eck$LassoCheckResult]: Stem: 27#[$Ultimate##0]true [31] $Ultimate##0-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[] 29#[L18]true [48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 31#[L31, L18-1]true [51] L18-1-->L39: Formula: (= v_T2Thread1of1ForFork1_thidvar0_2 2) InVars {} OutVars{T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[T2Thread1of1ForFork1_thidvar0] 66#[L31, L39, L19]true [2023-10-12 17:36:24,579 INFO L750 eck$LassoCheckResult]: Loop: 66#[L31, L39, L19]true [57] L39-->L39: Formula: (and (= v_y_10 (+ v_y_11 1)) (< v_y_11 v_n_7)) InVars {n=v_n_7, y=v_y_11} OutVars{n=v_n_7, y=v_y_10} AuxVars[] AssignedVars[y] 66#[L31, L39, L19]true [2023-10-12 17:36:24,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:24,580 INFO L85 PathProgramCache]: Analyzing trace with hash 61121, now seen corresponding path program 1 times [2023-10-12 17:36:24,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:24,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752153254] [2023-10-12 17:36:24,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:24,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:24,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:24,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:24,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:24,585 INFO L85 PathProgramCache]: Analyzing trace with hash 88, now seen corresponding path program 1 times [2023-10-12 17:36:24,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:24,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958587866] [2023-10-12 17:36:24,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:24,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:24,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:24,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:24,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:24,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1894808, now seen corresponding path program 1 times [2023-10-12 17:36:24,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:24,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703929625] [2023-10-12 17:36:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:24,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:24,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:24,606 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:36:24,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:36:24,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:36:24,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:36:24,606 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:36:24,606 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:24,606 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:36:24,606 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:36:24,606 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration2_Loop [2023-10-12 17:36:24,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:36:24,606 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:36:24,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:24,620 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:36:24,620 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:36:24,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:24,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:24,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:24,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:36:24,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:36:24,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:36:24,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:24,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:24,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:24,651 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:24,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:36:24,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:36:24,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:36:24,765 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:36:24,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:24,769 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:36:24,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:36:24,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:36:24,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:36:24,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:36:24,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:24,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:36:24,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:36:24,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration2_Loop [2023-10-12 17:36:24,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:36:24,770 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:36:24,770 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:24,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:36:24,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:36:24,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:24,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:24,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:24,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:36:24,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:36:24,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:36:24,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:36:24,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:36:24,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:36:24,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:36:24,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:36:24,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:36:24,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:36:24,827 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:36:24,827 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:36:24,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:24,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:24,833 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:24,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:36:24,840 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:36:24,840 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:36:24,840 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:36:24,840 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, n) = -1*y + 1*n Supporting invariants [] [2023-10-12 17:36:24,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:24,845 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:36:24,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:36:24,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:36:24,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:36:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:36:24,883 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:36:24,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:36:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:36:24,884 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:36:24,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:36:24,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:36:24,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2023-10-12 17:36:24,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:36:24,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:24,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:36:24,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:24,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:36:24,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:24,929 INFO L430 stractBuchiCegarLoop]: Abstraction has has 22 places, 117 transitions, 864 flow [2023-10-12 17:36:24,929 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:36:24,929 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 117 transitions, 864 flow [2023-10-12 17:36:24,935 INFO L124 PetriNetUnfolderBase]: 21/40 cut-off events. [2023-10-12 17:36:24,936 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-10-12 17:36:24,936 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:36:24,940 INFO L201 PluginConnector]: Adding new model MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:36:24 BoogieIcfgContainer [2023-10-12 17:36:24,940 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:36:24,940 INFO L158 Benchmark]: Toolchain (without parser) took 1835.82ms. Allocated memory is still 209.7MB. Free memory was 165.4MB in the beginning and 133.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.9MB. Max. memory is 8.0GB. [2023-10-12 17:36:24,941 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.27ms. Allocated memory is still 209.7MB. Free memory is still 166.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:36:24,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.41ms. Allocated memory is still 209.7MB. Free memory was 165.4MB in the beginning and 163.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:36:24,941 INFO L158 Benchmark]: Boogie Preprocessor took 12.30ms. Allocated memory is still 209.7MB. Free memory was 163.8MB in the beginning and 162.9MB in the end (delta: 946.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:36:24,942 INFO L158 Benchmark]: RCFGBuilder took 184.02ms. Allocated memory is still 209.7MB. Free memory was 162.9MB in the beginning and 153.9MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:36:24,942 INFO L158 Benchmark]: BuchiAutomizer took 1616.21ms. Allocated memory is still 209.7MB. Free memory was 153.7MB in the beginning and 133.5MB in the end (delta: 20.2MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. [2023-10-12 17:36:24,944 INFO L338 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 0.27ms. Allocated memory is still 209.7MB. Free memory is still 166.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.41ms. Allocated memory is still 209.7MB. Free memory was 165.4MB in the beginning and 163.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.30ms. Allocated memory is still 209.7MB. Free memory was 163.8MB in the beginning and 162.9MB in the end (delta: 946.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 184.02ms. Allocated memory is still 209.7MB. Free memory was 162.9MB in the beginning and 153.9MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1616.21ms. Allocated memory is still 209.7MB. Free memory was 153.7MB in the beginning and 133.5MB in the end (delta: 20.2MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x + n and consists of 3 locations. One deterministic module has affine ranking function n + -1 * y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 48 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 521ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 21 PlacesBefore, 16 PlacesAfterwards, 18 TransitionsBefore, 13 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 48 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:36:24,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:25,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:36:25,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...