/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET --buchiautomizer.use.buchi.petri.net.intersection.optimizations true --buchiautomizer.use.automata.for.buchi.petri.net.emptiness.check true -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-10 00:28:21,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-10 00:28:21,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-10 00:28:21,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-10 00:28:21,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-10 00:28:21,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-10 00:28:21,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-10 00:28:21,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-10 00:28:21,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-10 00:28:21,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-10 00:28:21,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-10 00:28:21,449 INFO L153 SettingsManager]: * Use SBE=true [2024-02-10 00:28:21,449 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-10 00:28:21,450 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-10 00:28:21,450 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-10 00:28:21,450 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-10 00:28:21,451 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-10 00:28:21,451 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-10 00:28:21,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-10 00:28:21,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-10 00:28:21,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-10 00:28:21,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-10 00:28:21,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-10 00:28:21,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-10 00:28:21,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-10 00:28:21,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-10 00:28:21,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-10 00:28:21,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-10 00:28:21,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-10 00:28:21,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-10 00:28:21,456 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-10 00:28:21,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-10 00:28:21,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-10 00:28:21,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-10 00:28:21,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-10 00:28:21,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-10 00:28:21,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-10 00:28:21,458 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-10 00:28:21,458 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Use Buchi Petri Net Intersection Optimizations -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Use automata for Buchi Petri Net emptiness check -> true [2024-02-10 00:28:21,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-10 00:28:22,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-10 00:28:22,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-10 00:28:22,032 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-10 00:28:22,033 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-10 00:28:22,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl [2024-02-10 00:28:22,035 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl' [2024-02-10 00:28:22,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-10 00:28:22,086 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-10 00:28:22,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-10 00:28:22,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-10 00:28:22,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-10 00:28:22,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,191 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-10 00:28:22,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-10 00:28:22,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-10 00:28:22,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-10 00:28:22,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-10 00:28:22,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-10 00:28:22,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-10 00:28:22,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-10 00:28:22,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-10 00:28:22,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/1) ... [2024-02-10 00:28:22,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:22,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:22,314 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) [2024-02-10 00:28:22,337 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 [2024-02-10 00:28:22,394 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-10 00:28:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-10 00:28:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-10 00:28:22,395 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2024-02-10 00:28:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2024-02-10 00:28:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2024-02-10 00:28:22,395 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2024-02-10 00:28:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2024-02-10 00:28:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2024-02-10 00:28:22,396 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-10 00:28:22,450 INFO L236 CfgBuilder]: Building ICFG [2024-02-10 00:28:22,453 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-10 00:28:22,659 INFO L277 CfgBuilder]: Performing block encoding [2024-02-10 00:28:22,691 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-10 00:28:22,692 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-10 00:28:22,693 INFO L201 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:28:22 BoogieIcfgContainer [2024-02-10 00:28:22,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-10 00:28:22,694 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-10 00:28:22,695 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-10 00:28:22,725 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-10 00:28:22,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 00:28:22,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:28:22" (1/2) ... [2024-02-10 00:28:22,732 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8a8bb13 and model type sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.02 12:28:22, skipping insertion in model container [2024-02-10 00:28:22,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 00:28:22,748 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:28:22" (2/2) ... [2024-02-10 00:28:22,750 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum2_diff_incr_decr.bpl [2024-02-10 00:28:22,839 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-10 00:28:22,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 68 flow [2024-02-10 00:28:22,893 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2024-02-10 00:28:22,893 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-10 00:28:22,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2024-02-10 00:28:22,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 68 flow [2024-02-10 00:28:22,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2024-02-10 00:28:22,908 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-10 00:28:22,908 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-10 00:28:22,909 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-10 00:28:22,909 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-10 00:28:22,909 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-10 00:28:22,909 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-10 00:28:22,909 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-10 00:28:22,910 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-10 00:28:22,910 INFO L139 chiPetriNetCegarLoop]: use automaton for emptiness check [2024-02-10 00:28:22,910 INFO L128 iNet2FiniteAutomaton]: Start buchiPetriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 58 flow [2024-02-10 00:28:22,934 INFO L151 iNet2FiniteAutomaton]: Finished buchiPetriNet2FiniteAutomaton. Result has 85 states, 83 states have (on average 1.9879518072289157) internal successors, (165), 84 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:22,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 83 states have (on average 1.9879518072289157) internal successors, (165), 84 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:22,963 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 56 [2024-02-10 00:28:22,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-10 00:28:22,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-10 00:28:22,967 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-10 00:28:22,968 INFO L139 chiPetriNetCegarLoop]: use automaton for emptiness check [2024-02-10 00:28:22,968 INFO L128 iNet2FiniteAutomaton]: Start buchiPetriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 58 flow [2024-02-10 00:28:22,982 INFO L151 iNet2FiniteAutomaton]: Finished buchiPetriNet2FiniteAutomaton. Result has 85 states, 83 states have (on average 1.9879518072289157) internal successors, (165), 84 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:22,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 83 states have (on average 1.9879518072289157) internal successors, (165), 84 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:22,992 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 56 [2024-02-10 00:28:22,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-10 00:28:22,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-10 00:28:22,996 INFO L748 eck$LassoCheckResult]: Stem: Black: 205#[$Ultimate##0]don't care [74] $Ultimate##0-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_16, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_8} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0, T1Thread1of1ForFork0_sum] 208#[$Ultimate##0, L46]don't care [56] $Ultimate##0-->L16: Formula: (= v_T1Thread1of1ForFork0_i_1 0) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 210#[L16, L46]don't care [57] L16-->L17-1: Formula: (= v_T1Thread1of1ForFork0_sum_1 0) InVars {} OutVars{T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_1} AuxVars[] AssignedVars[T1Thread1of1ForFork0_sum] 214#[L17-1, L46]don't care [2024-02-10 00:28:22,997 INFO L750 eck$LassoCheckResult]: Loop: 214#[L17-1, L46]don't care [59] L17-1-->L18: Formula: (< v_T1Thread1of1ForFork0_i_5 v_N_2) InVars {T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_5, N=v_N_2} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_5, N=v_N_2} AuxVars[] AssignedVars[] 224#[L18, L46]don't care [61] L18-->L18-1: Formula: (and (= v_B_6 (store v_B_7 v_T1Thread1of1ForFork0_i_7 (+ (- 1) (select v_B_7 v_T1Thread1of1ForFork0_i_7)))) (= (store v_A_7 v_T1Thread1of1ForFork0_i_7 (+ (select v_A_7 v_T1Thread1of1ForFork0_i_7) 1)) v_A_6)) InVars {A=v_A_7, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_7, B=v_B_7} OutVars{A=v_A_6, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_7, B=v_B_6} AuxVars[] AssignedVars[A, B] 238#[L18-1, L46]don't care [62] L18-1-->L23: Formula: (= v_T1Thread1of1ForFork0_sum_4 (+ (select v_B_3 v_T1Thread1of1ForFork0_i_9) (select v_A_3 v_T1Thread1of1ForFork0_i_9) v_T1Thread1of1ForFork0_sum_3)) InVars {A=v_A_3, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_9, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_3, B=v_B_3} OutVars{A=v_A_3, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_9, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_4, B=v_B_3} AuxVars[] AssignedVars[T1Thread1of1ForFork0_sum] 256#[L46, L23]don't care [63] L23-->L17-1: Formula: (= (+ v_T1Thread1of1ForFork0_i_11 1) v_T1Thread1of1ForFork0_i_12) InVars {T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_11} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_12} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 214#[L17-1, L46]don't care [2024-02-10 00:28:23,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:23,006 INFO L85 PathProgramCache]: Analyzing trace with hash 102698, now seen corresponding path program 1 times [2024-02-10 00:28:23,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:28:23,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916822234] [2024-02-10 00:28:23,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:28:23,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:28:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:23,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:28:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:23,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:28:23,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:23,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2741796, now seen corresponding path program 1 times [2024-02-10 00:28:23,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:28:23,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993056772] [2024-02-10 00:28:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:28:23,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:28:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:23,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:28:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:23,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:28:23,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 356297421, now seen corresponding path program 1 times [2024-02-10 00:28:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:28:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691912717] [2024-02-10 00:28:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:28:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:28:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:23,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:28:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:23,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:28:23,424 INFO L210 LassoAnalysis]: Preferences: [2024-02-10 00:28:23,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-10 00:28:23,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-10 00:28:23,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-10 00:28:23,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-10 00:28:23,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:23,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-10 00:28:23,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-10 00:28:23,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2024-02-10 00:28:23,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-10 00:28:23,425 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-10 00:28:23,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:23,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:23,643 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-10 00:28:23,646 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-10 00:28:23,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:23,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:23,673 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) [2024-02-10 00:28:23,681 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 [2024-02-10 00:28:23,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-10 00:28:23,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-10 00:28:23,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-10 00:28:23,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-10 00:28:23,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-10 00:28:23,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-10 00:28:23,720 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 [2024-02-10 00:28:23,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-10 00:28:23,760 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 [2024-02-10 00:28:23,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:23,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:23,766 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) [2024-02-10 00:28:23,790 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 [2024-02-10 00:28:23,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-10 00:28:23,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-10 00:28:23,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-10 00:28:23,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-10 00:28:23,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-10 00:28:23,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-10 00:28:23,820 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 [2024-02-10 00:28:23,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-10 00:28:23,842 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 [2024-02-10 00:28:23,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:23,846 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) [2024-02-10 00:28:23,852 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 [2024-02-10 00:28:23,855 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 [2024-02-10 00:28:23,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-10 00:28:23,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-10 00:28:23,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-10 00:28:23,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-10 00:28:23,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-10 00:28:23,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-10 00:28:23,903 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-10 00:28:23,911 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-02-10 00:28:23,911 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-02-10 00:28:23,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:23,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:23,932 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) [2024-02-10 00:28:23,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-10 00:28:23,946 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 [2024-02-10 00:28:23,980 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-10 00:28:23,980 INFO L513 LassoAnalysis]: Proved termination. [2024-02-10 00:28:23,981 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2024-02-10 00:28:23,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-02-10 00:28:23,992 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-10 00:28:24,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-02-10 00:28:24,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:28:24,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-10 00:28:24,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-10 00:28:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:28:24,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-10 00:28:24,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-10 00:28:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-10 00:28:24,193 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-02-10 00:28:24,194 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:24,352 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 335 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2024-02-10 00:28:24,353 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-10 00:28:24,353 INFO L112 BuchiIntersect]: use intersection optimizations [2024-02-10 00:28:24,355 INFO L63 sectAllAcceptingtNet]: Starting Intersection with all accepting Petri Net [2024-02-10 00:28:24,395 INFO L72 sectAllAcceptingtNet]: Exiting Intersection with all accepting Petri Net [2024-02-10 00:28:24,395 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-10 00:28:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-10 00:28:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-02-10 00:28:24,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 3 letters. Loop has 4 letters. [2024-02-10 00:28:24,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-10 00:28:24,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 7 letters. Loop has 4 letters. [2024-02-10 00:28:24,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-10 00:28:24,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 3 letters. Loop has 8 letters. [2024-02-10 00:28:24,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-10 00:28:24,415 INFO L428 stractBuchiCegarLoop]: Abstraction has has 37 places, 283 transitions, 1273 flow [2024-02-10 00:28:24,415 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-10 00:28:24,415 INFO L139 chiPetriNetCegarLoop]: use automaton for emptiness check [2024-02-10 00:28:24,419 INFO L128 iNet2FiniteAutomaton]: Start buchiPetriNet2FiniteAutomaton. Operand has 37 places, 283 transitions, 1273 flow [2024-02-10 00:28:24,459 INFO L151 iNet2FiniteAutomaton]: Finished buchiPetriNet2FiniteAutomaton. Result has 176 states, 170 states have (on average 2.958823529411765) internal successors, (503), 175 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:24,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 170 states have (on average 2.958823529411765) internal successors, (503), 175 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:24,473 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 36 [2024-02-10 00:28:24,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-10 00:28:24,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-10 00:28:24,475 INFO L748 eck$LassoCheckResult]: Stem: Black: 422#[$Ultimate##0]don't care [74] $Ultimate##0-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_16, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_8} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0, T1Thread1of1ForFork0_sum] 428#[$Ultimate##0, L46]don't care [77] L46-->$Ultimate##0: Formula: (and (= v_T2Thread1of1ForFork1_thidvar1_2 2) (= v_T2Thread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_8, T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2, T2Thread1of1ForFork1_thidvar1=v_T2Thread1of1ForFork1_thidvar1_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_16} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, T2Thread1of1ForFork1_thidvar0, T2Thread1of1ForFork1_thidvar1, T2Thread1of1ForFork1_j] 438#[$Ultimate##0, L47, $Ultimate##0]don't care [64] $Ultimate##0-->L33: Formula: (= v_T2Thread1of1ForFork1_j_1 0) InVars {} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[T2Thread1of1ForFork1_j] 451#[$Ultimate##0, L33, L47]don't care [65] L33-->L34-1: Formula: (= v_T2Thread1of1ForFork1_sum_1 0) InVars {} OutVars{T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_1} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum] 479#[$Ultimate##0, L47, L34-1]don't care [2024-02-10 00:28:24,475 INFO L750 eck$LassoCheckResult]: Loop: 479#[$Ultimate##0, L47, L34-1]don't care [67] L34-1-->L35: Formula: (< v_T2Thread1of1ForFork1_j_5 v_N_3) InVars {T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_5, N=v_N_3} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_5, N=v_N_3} AuxVars[] AssignedVars[] 522#[$Ultimate##0, L47, L35]don't care [69] L35-->L36: Formula: (= (+ (select v_A_4 v_T2Thread1of1ForFork1_j_7) v_T2Thread1of1ForFork1_sum_3 (select v_B_4 v_T2Thread1of1ForFork1_j_7)) v_T2Thread1of1ForFork1_sum_4) InVars {A=v_A_4, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_3, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_7, B=v_B_4} OutVars{A=v_A_4, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_4, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_7, B=v_B_4} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum] 575#[$Ultimate##0, L36, L47]don't care [70] L36-->L37: Formula: (= (store v_D_2 v_T2Thread1of1ForFork1_j_9 (+ (select v_A_5 v_T2Thread1of1ForFork1_j_9) (* (- 1) (select v_B_5 v_T2Thread1of1ForFork1_j_9)))) v_D_1) InVars {A=v_A_5, D=v_D_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_9, B=v_B_5} OutVars{A=v_A_5, D=v_D_1, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_9, B=v_B_5} AuxVars[] AssignedVars[D] 636#[$Ultimate##0, L47, L37]don't care [71] L37-->L34-1: Formula: (= v_T2Thread1of1ForFork1_j_12 (+ v_T2Thread1of1ForFork1_j_11 1)) InVars {T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_11} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_12} AuxVars[] AssignedVars[T2Thread1of1ForFork1_j] 479#[$Ultimate##0, L47, L34-1]don't care [2024-02-10 00:28:24,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash 3204101, now seen corresponding path program 1 times [2024-02-10 00:28:24,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:28:24,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229805947] [2024-02-10 00:28:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:28:24,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:28:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:24,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:28:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:24,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:28:24,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2988068, now seen corresponding path program 1 times [2024-02-10 00:28:24,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:28:24,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601761484] [2024-02-10 00:28:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:28:24,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:28:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:24,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:28:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:24,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:28:24,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash -175842776, now seen corresponding path program 1 times [2024-02-10 00:28:24,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:28:24,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036593080] [2024-02-10 00:28:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:28:24,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:28:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:24,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:28:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:28:24,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:28:24,635 INFO L210 LassoAnalysis]: Preferences: [2024-02-10 00:28:24,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-10 00:28:24,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-10 00:28:24,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-10 00:28:24,636 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-10 00:28:24,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:24,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-10 00:28:24,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-10 00:28:24,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2024-02-10 00:28:24,637 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-10 00:28:24,637 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-10 00:28:24,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:24,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:24,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:24,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:24,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:24,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 00:28:24,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-10 00:28:24,736 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-10 00:28:24,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:24,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:24,737 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) [2024-02-10 00:28:24,743 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 [2024-02-10 00:28:24,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-10 00:28:24,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-10 00:28:24,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-10 00:28:24,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-10 00:28:24,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-10 00:28:24,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-10 00:28:24,759 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 [2024-02-10 00:28:24,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-10 00:28:24,773 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 [2024-02-10 00:28:24,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:24,775 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) [2024-02-10 00:28:24,780 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 [2024-02-10 00:28:24,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-10 00:28:24,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-10 00:28:24,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-10 00:28:24,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-10 00:28:24,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-10 00:28:24,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-10 00:28:24,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-10 00:28:24,791 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 [2024-02-10 00:28:24,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-10 00:28:24,826 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 [2024-02-10 00:28:24,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:24,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:24,874 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) [2024-02-10 00:28:24,879 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 [2024-02-10 00:28:24,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-10 00:28:24,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-10 00:28:24,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-10 00:28:24,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-10 00:28:24,892 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 [2024-02-10 00:28:24,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-10 00:28:24,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-10 00:28:24,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-10 00:28:24,946 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-10 00:28:24,946 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-10 00:28:24,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:28:24,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:28:24,949 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) [2024-02-10 00:28:25,007 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 [2024-02-10 00:28:25,009 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-10 00:28:25,033 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-10 00:28:25,033 INFO L513 LassoAnalysis]: Proved termination. [2024-02-10 00:28:25,033 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2024-02-10 00:28:25,039 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 [2024-02-10 00:28:25,040 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-10 00:28:25,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:28:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:28:25,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-10 00:28:25,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-10 00:28:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:28:25,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-10 00:28:25,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-10 00:28:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-10 00:28:25,133 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-02-10 00:28:25,133 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:25,239 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 335 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2024-02-10 00:28:25,239 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-10 00:28:25,239 INFO L112 BuchiIntersect]: use intersection optimizations [2024-02-10 00:28:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states and 335 transitions. [2024-02-10 00:28:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 335 transitions. [2024-02-10 00:28:25,249 INFO L79 tersectStemOptimized]: Starting StemOptimized Intersection [2024-02-10 00:28:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states and 335 transitions. [2024-02-10 00:28:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 335 transitions. [2024-02-10 00:28:25,404 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 [2024-02-10 00:28:25,501 INFO L90 tersectStemOptimized]: Exiting StemOptimized Intersection [2024-02-10 00:28:25,501 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-10 00:28:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-10 00:28:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-02-10 00:28:25,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 4 letters. Loop has 4 letters. [2024-02-10 00:28:25,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-10 00:28:25,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 8 letters. Loop has 4 letters. [2024-02-10 00:28:25,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-10 00:28:25,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 4 letters. Loop has 8 letters. [2024-02-10 00:28:25,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-10 00:28:25,503 INFO L428 stractBuchiCegarLoop]: Abstraction has has 50 places, 4512 transitions, 29196 flow [2024-02-10 00:28:25,503 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-10 00:28:25,503 INFO L139 chiPetriNetCegarLoop]: use automaton for emptiness check [2024-02-10 00:28:25,503 INFO L128 iNet2FiniteAutomaton]: Start buchiPetriNet2FiniteAutomaton. Operand has 50 places, 4512 transitions, 29196 flow [2024-02-10 00:28:25,952 INFO L151 iNet2FiniteAutomaton]: Finished buchiPetriNet2FiniteAutomaton. Result has 438 states, 408 states have (on average 3.9019607843137254) internal successors, (1592), 437 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:25,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 438 states, 408 states have (on average 3.9019607843137254) internal successors, (1592), 437 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-10 00:28:25,967 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-10 00:28:25,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-02-10 00:28:25,975 INFO L201 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.02 12:28:25 BoogieIcfgContainer [2024-02-10 00:28:25,976 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-10 00:28:25,977 INFO L158 Benchmark]: Toolchain (without parser) took 3890.00ms. Allocated memory was 179.3MB in the beginning and 233.8MB in the end (delta: 54.5MB). Free memory was 147.4MB in the beginning and 180.6MB in the end (delta: -33.2MB). Peak memory consumption was 141.5MB. Max. memory is 8.0GB. [2024-02-10 00:28:25,980 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-10 00:28:25,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.65ms. Allocated memory is still 179.3MB. Free memory was 147.3MB in the beginning and 153.9MB in the end (delta: -6.6MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2024-02-10 00:28:25,997 INFO L158 Benchmark]: Boogie Preprocessor took 47.00ms. Allocated memory is still 179.3MB. Free memory was 153.9MB in the beginning and 152.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-02-10 00:28:25,998 INFO L158 Benchmark]: RCFGBuilder took 447.36ms. Allocated memory is still 179.3MB. Free memory was 152.9MB in the beginning and 143.0MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2024-02-10 00:28:25,998 INFO L158 Benchmark]: BuchiAutomizer took 3281.20ms. Allocated memory was 179.3MB in the beginning and 233.8MB in the end (delta: 54.5MB). Free memory was 142.9MB in the beginning and 180.6MB in the end (delta: -37.6MB). Peak memory consumption was 137.1MB. Max. memory is 8.0GB. [2024-02-10 00:28:26,002 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 0.10ms. Allocated memory is still 179.3MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 109.65ms. Allocated memory is still 179.3MB. Free memory was 147.3MB in the beginning and 153.9MB in the end (delta: -6.6MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.00ms. Allocated memory is still 179.3MB. Free memory was 153.9MB in the beginning and 152.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 447.36ms. Allocated memory is still 179.3MB. Free memory was 152.9MB in the beginning and 143.0MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3281.20ms. Allocated memory was 179.3MB in the beginning and 233.8MB in the end (delta: 54.5MB). Free memory was 142.9MB in the beginning and 180.6MB in the end (delta: -37.6MB). Peak memory consumption was 137.1MB. 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 N + -1 * i and consists of 5 locations. One deterministic module has affine ranking function N + -1 * j and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 1. 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, 144 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 106 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital51 mio100 ax100 hnf100 lsp88 ukn47 mio100 lsp68 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 75ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-02-10 00:28:26,026 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...