/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 BUCHI_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:43,363 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:43,404 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 17:12:43,422 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:43,422 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:43,422 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:43,423 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:43,423 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:43,424 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:43,424 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:43,424 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:43,424 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:43,424 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:43,425 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:43,425 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:43,425 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:43,425 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:43,425 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:43,426 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:43,426 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:43,426 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:43,426 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:43,426 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:43,427 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:43,427 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:43,427 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:43,427 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:43,427 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:43,427 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:43,428 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:43,428 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:43,428 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:43,428 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:43,429 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:43,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:43,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:43,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:43,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:43,634 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:43,636 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:43,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl [2023-10-12 17:12:43,638 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl' [2023-10-12 17:12:43,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:43,658 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:43,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:43,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:43,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:43,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,687 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:43,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:43,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:43,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:43,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:43,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:43,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:43,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:43,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:43,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/1) ... [2023-10-12 17:12:43,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:43,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:43,742 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 17:12:43,757 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 17:12:43,772 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:43,773 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:12:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:12:43,773 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:12:43,773 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:12:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:12:43,773 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:12:43,774 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 17:12:43,812 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:43,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:43,932 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:43,942 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:43,942 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:12:43,946 INFO L201 PluginConnector]: Adding new model sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:43 BoogieIcfgContainer [2023-10-12 17:12:43,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:43,947 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:43,948 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:43,950 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:43,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:43,951 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:43" (1/2) ... [2023-10-12 17:12:43,952 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fb4c24b and model type sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:43, skipping insertion in model container [2023-10-12 17:12:43,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:43,952 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:43" (2/2) ... [2023-10-12 17:12:43,953 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum_diff_incr_decr.bpl [2023-10-12 17:12:44,021 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:12:44,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 25 transitions, 66 flow [2023-10-12 17:12:44,072 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-10-12 17:12:44,072 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:44,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2023-10-12 17:12:44,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 25 transitions, 66 flow [2023-10-12 17:12:44,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2023-10-12 17:12:44,087 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:44,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 21 transitions, 54 flow [2023-10-12 17:12:44,107 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 21 transitions, 54 flow [2023-10-12 17:12:44,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 21 transitions, 54 flow [2023-10-12 17:12:44,112 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-10-12 17:12:44,112 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:44,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2023-10-12 17:12:44,113 INFO L119 LiptonReduction]: Number of co-enabled transitions 110 [2023-10-12 17:12:44,387 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-10-12 17:12:44,387 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-10-12 17:12:44,402 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:44,402 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:44,403 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:44,403 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:44,403 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:44,403 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:44,403 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:44,403 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:44,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:44,425 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:12:44,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:44,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:44,429 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:44,430 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:44,430 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:44,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 19 states, but on-demand construction may add more states [2023-10-12 17:12:44,431 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:12:44,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:44,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:44,432 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:44,432 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:44,435 INFO L748 eck$LassoCheckResult]: Stem: 31#[$Ultimate##0]don't care [42] $Ultimate##0-->L45: Formula: (and (< v_ULTIMATE.start_m_1 v_N_1) (<= 0 v_ULTIMATE.start_m_1)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} AuxVars[] AssignedVars[] 34#[L45]don't care [67] L45-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_14, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0] 36#[$Ultimate##0, L45-1]don't care [52] $Ultimate##0-->L16-1: Formula: (= v_T1Thread1of1ForFork0_i_1 0) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 38#[L45-1, L16-1]don't care [2023-10-12 17:12:44,435 INFO L750 eck$LassoCheckResult]: Loop: 38#[L45-1, L16-1]don't care [79] L16-1-->L16-1: Formula: (and (= v_B_33 (store v_B_34 v_T1Thread1of1ForFork0_i_28 (+ (- 1) (select v_B_34 v_T1Thread1of1ForFork0_i_28)))) (= (+ v_T1Thread1of1ForFork0_i_28 1) v_T1Thread1of1ForFork0_i_27) (< v_T1Thread1of1ForFork0_i_28 v_N_12) (= (store v_A_34 v_T1Thread1of1ForFork0_i_28 (+ (select v_A_34 v_T1Thread1of1ForFork0_i_28) 1)) v_A_33)) InVars {A=v_A_34, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_28, N=v_N_12, B=v_B_34} OutVars{A=v_A_33, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_27, N=v_N_12, B=v_B_33} AuxVars[] AssignedVars[A, T1Thread1of1ForFork0_i, B] 38#[L45-1, L16-1]don't care [2023-10-12 17:12:44,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:44,439 INFO L85 PathProgramCache]: Analyzing trace with hash 72282, now seen corresponding path program 1 times [2023-10-12 17:12:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:44,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460886054] [2023-10-12 17:12:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:44,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:44,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:44,528 INFO L85 PathProgramCache]: Analyzing trace with hash 110, now seen corresponding path program 1 times [2023-10-12 17:12:44,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:44,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409572638] [2023-10-12 17:12:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:44,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:44,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2240821, now seen corresponding path program 1 times [2023-10-12 17:12:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:44,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263086772] [2023-10-12 17:12:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:44,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:44,636 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:44,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:44,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:44,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:44,637 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:44,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:44,637 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:44,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:44,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:44,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:44,638 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:44,651 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 17:12:44,693 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 17:12:44,738 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:44,742 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:44,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:44,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:44,750 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 17:12:44,751 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 17:12:44,752 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 17:12:44,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:44,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:44,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:44,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:44,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:44,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:44,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:44,817 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:12:44,817 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:12:44,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:44,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:44,831 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 17:12:44,832 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 17:12:44,901 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:44,925 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:44,926 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:44,926 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2023-10-12 17:12:44,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:12:44,942 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:44,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:44,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:44,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:44,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:44,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:44,994 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 17:12:45,017 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 17:12:45,018 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states Second 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 17:12:45,058 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states. Second 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) Result 45 states and 101 transitions. Complement of second has 4 states. [2023-10-12 17:12:45,060 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 17:12:45,064 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 17:12:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2023-10-12 17:12:45,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:12:45,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:12:45,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:12:45,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 101 transitions. [2023-10-12 17:12:45,069 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:45,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 53 transitions. [2023-10-12 17:12:45,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-10-12 17:12:45,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-10-12 17:12:45,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 53 transitions. [2023-10-12 17:12:45,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:45,075 INFO L219 hiAutomatonCegarLoop]: Abstraction has 23 states and 53 transitions. [2023-10-12 17:12:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 53 transitions. [2023-10-12 17:12:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2023-10-12 17:12:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 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 17:12:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 47 transitions. [2023-10-12 17:12:45,099 INFO L241 hiAutomatonCegarLoop]: Abstraction has 20 states and 47 transitions. [2023-10-12 17:12:45,099 INFO L430 stractBuchiCegarLoop]: Abstraction has 20 states and 47 transitions. [2023-10-12 17:12:45,099 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:12:45,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 47 transitions. [2023-10-12 17:12:45,113 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:45,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:45,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:45,115 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:12:45,115 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:45,116 INFO L748 eck$LassoCheckResult]: Stem: 179#[$Ultimate##0]don't care [42] $Ultimate##0-->L45: Formula: (and (< v_ULTIMATE.start_m_1 v_N_1) (<= 0 v_ULTIMATE.start_m_1)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} AuxVars[] AssignedVars[] 181#[L45]don't care [67] L45-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_14, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0] 169#[$Ultimate##0, L45-1]don't care [70] L45-1-->$Ultimate##0: Formula: (and (= v_T2Thread1of1ForFork1_thidvar1_2 2) (= v_T2Thread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2, T2Thread1of1ForFork1_thidvar1=v_T2Thread1of1ForFork1_thidvar1_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_16} AuxVars[] AssignedVars[T2Thread1of1ForFork1_thidvar0, T2Thread1of1ForFork1_thidvar1, T2Thread1of1ForFork1_j] 171#[L46, $Ultimate##0, $Ultimate##0]don't care [58] $Ultimate##0-->L31-1: Formula: (= v_T2Thread1of1ForFork1_j_1 0) InVars {} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[T2Thread1of1ForFork1_j] 177#[L46, L31-1, $Ultimate##0]don't care [2023-10-12 17:12:45,116 INFO L750 eck$LassoCheckResult]: Loop: 177#[L46, L31-1, $Ultimate##0]don't care [80] L31-1-->L31-1: Formula: (let ((.cse0 (select v_A_41 v_T2Thread1of1ForFork1_j_34)) (.cse1 (select v_B_41 v_T2Thread1of1ForFork1_j_34))) (and (= (store v_C_20 v_T2Thread1of1ForFork1_j_34 (+ .cse0 .cse1)) v_C_19) (< v_T2Thread1of1ForFork1_j_34 v_N_16) (= (+ v_T2Thread1of1ForFork1_j_34 1) v_T2Thread1of1ForFork1_j_33) (= v_D_15 (store v_D_16 v_T2Thread1of1ForFork1_j_34 (+ .cse0 (* (- 1) .cse1)))))) InVars {A=v_A_41, N=v_N_16, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_34, C=v_C_20, B=v_B_41} OutVars{A=v_A_41, N=v_N_16, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_33, C=v_C_19, B=v_B_41} AuxVars[] AssignedVars[D, T2Thread1of1ForFork1_j, C] 177#[L46, L31-1, $Ultimate##0]don't care [2023-10-12 17:12:45,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2241358, now seen corresponding path program 1 times [2023-10-12 17:12:45,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253278379] [2023-10-12 17:12:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:12:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,140 INFO L85 PathProgramCache]: Analyzing trace with hash 111, now seen corresponding path program 1 times [2023-10-12 17:12:45,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192017019] [2023-10-12 17:12:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash 69482178, now seen corresponding path program 1 times [2023-10-12 17:12:45,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836468036] [2023-10-12 17:12:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,246 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:45,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:45,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:45,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:45,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:45,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:45,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:45,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:12:45,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:45,247 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:45,248 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 17:12:45,251 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 17:12:45,253 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 17:12:45,256 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 17:12:45,259 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 17:12:45,330 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:45,331 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:45,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,332 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 17:12:45,334 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 17:12:45,335 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 17:12:45,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,344 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:45,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:45,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,356 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 [2023-10-12 17:12:45,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,358 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 17:12:45,361 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 17:12:45,362 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 17:12:45,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:45,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:45,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:45,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,408 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 17:12:45,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,445 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 17:12:45,448 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 17:12:45,449 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 17:12:45,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:45,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:45,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,482 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 17:12:45,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,484 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 17:12:45,500 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 17:12:45,505 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 17:12:45,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:45,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:45,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,537 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 17:12:45,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,539 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 17:12:45,544 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 17:12:45,545 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 17:12:45,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:45,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:45,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:45,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,565 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 17:12:45,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,566 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 17:12:45,568 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 17:12:45,569 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 17:12:45,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:45,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:45,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:45,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,602 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 17:12:45,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,604 INFO L229 MonitoredProcess]: Starting monitored process 10 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 17:12:45,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:12:45,609 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 17:12:45,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:45,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:45,649 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:45,657 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:12:45,657 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:12:45,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,659 INFO L229 MonitoredProcess]: Starting monitored process 11 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 17:12:45,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:12:45,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:45,690 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:45,690 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:45,690 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2023-10-12 17:12:45,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:12:45,705 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:45,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:45,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:45,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:45,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:45,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:45,735 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 17:12:45,736 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 17:12:45,737 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 47 transitions. cyclomatic complexity: 34 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 17:12:45,760 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 47 transitions. cyclomatic complexity: 34. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 36 states and 81 transitions. Complement of second has 4 states. [2023-10-12 17:12:45,761 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 17:12:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 17:12:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2023-10-12 17:12:45,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:12:45,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:12:45,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:12:45,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 81 transitions. [2023-10-12 17:12:45,772 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:45,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2023-10-12 17:12:45,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:12:45,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:12:45,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:12:45,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:12:45,773 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:45,773 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:45,773 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:45,773 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:12:45,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:12:45,773 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:45,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:12:45,782 INFO L201 PluginConnector]: Adding new model sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:45 BoogieIcfgContainer [2023-10-12 17:12:45,783 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:45,784 INFO L158 Benchmark]: Toolchain (without parser) took 2125.37ms. Allocated memory was 217.1MB in the beginning and 289.4MB in the end (delta: 72.4MB). Free memory was 168.3MB in the beginning and 223.5MB in the end (delta: -55.2MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. [2023-10-12 17:12:45,784 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.66ms. Allocated memory is still 217.1MB. Free memory is still 169.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:45,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.31ms. Allocated memory is still 217.1MB. Free memory was 168.1MB in the beginning and 166.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:45,785 INFO L158 Benchmark]: Boogie Preprocessor took 17.04ms. Allocated memory is still 217.1MB. Free memory was 166.5MB in the beginning and 165.5MB in the end (delta: 988.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:45,787 INFO L158 Benchmark]: RCFGBuilder took 237.94ms. Allocated memory is still 217.1MB. Free memory was 165.5MB in the beginning and 155.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:12:45,787 INFO L158 Benchmark]: BuchiAutomizer took 1835.34ms. Allocated memory was 217.1MB in the beginning and 289.4MB in the end (delta: 72.4MB). Free memory was 155.7MB in the beginning and 223.5MB in the end (delta: -67.8MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. [2023-10-12 17:12:45,794 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 0.66ms. Allocated memory is still 217.1MB. Free memory is still 169.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.31ms. Allocated memory is still 217.1MB. Free memory was 168.1MB in the beginning and 166.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.04ms. Allocated memory is still 217.1MB. Free memory was 166.5MB in the beginning and 165.5MB in the end (delta: 988.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 237.94ms. Allocated memory is still 217.1MB. Free memory was 165.5MB in the beginning and 155.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1835.34ms. Allocated memory was 217.1MB in the beginning and 289.4MB in the end (delta: 72.4MB). Free memory was 155.7MB in the beginning and 223.5MB in the end (delta: -67.8MB). Peak memory consumption was 6.1MB. 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 3 locations. One deterministic module has affine ranking function N + -1 * j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital48 mio100 ax100 hnf100 lsp88 ukn45 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf100 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 183ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - 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: 0.3s, 26 PlacesBefore, 18 PlacesAfterwards, 21 TransitionsBefore, 13 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, independent: 67, independent conditional: 0, independent unconditional: 67, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, 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 17:12:45,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...