/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:23:17,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:23:17,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:23:17,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:23:17,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:23:17,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:23:17,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:23:17,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:23:17,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:23:17,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:23:17,432 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:23:17,432 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:23:17,432 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:23:17,432 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:23:17,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:23:17,433 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:23:17,434 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:23:17,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:23:17,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:23:17,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:23:17,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:23:17,434 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:23:17,434 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:23:17,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:23:17,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:23:17,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:23:17,669 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:23:17,670 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:23:17,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl [2025-04-26 16:23:17,672 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl' [2025-04-26 16:23:17,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:23:17,688 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:23:17,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:23:17,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:23:17,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:23:17,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,712 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:23:17,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:23:17,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:23:17,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:23:17,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:23:17,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,721 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:23:17,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:23:17,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:23:17,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:23:17,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/1) ... [2025-04-26 16:23:17,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:17,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:17,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:17,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:23:17,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:23:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:23:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:23:17,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:23:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:23:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:23:17,782 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:23:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:23:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:23:17,782 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:23:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:23:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:23:17,782 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:23:17,820 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:23:17,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:23:17,908 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:23:17,909 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:23:17,930 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:23:17,930 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:23:17,931 INFO L201 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:23:17 BoogieIcfgContainer [2025-04-26 16:23:17,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:23:17,932 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:23:17,932 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:23:17,937 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:23:17,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:23:17,938 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:23:17" (1/2) ... [2025-04-26 16:23:17,939 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a7b3329 and model type max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:23:17, skipping insertion in model container [2025-04-26 16:23:17,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:23:17,939 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:23:17" (2/2) ... [2025-04-26 16:23:17,940 INFO L376 chiAutomizerObserver]: Analyzing ICFG max-fun.wvr.bpl [2025-04-26 16:23:17,987 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:23:18,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:23:18,048 INFO L116 PetriNetUnfolderBase]: 3/26 cut-off events. [2025-04-26 16:23:18,049 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:23:18,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-04-26 16:23:18,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:23:18,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2025-04-26 16:23:18,060 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 33 places, 26 transitions, 70 flow [2025-04-26 16:23:18,068 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:23:18,068 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:23:18,068 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:23:18,068 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:23:18,068 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:23:18,068 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:23:18,068 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:23:18,069 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:23:18,071 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:23:18,115 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 84 [2025-04-26 16:23:18,115 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:23:18,115 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:23:18,118 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:23:18,118 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:23:18,118 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:23:18,118 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 113 states, but on-demand construction may add more states [2025-04-26 16:23:18,124 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 84 [2025-04-26 16:23:18,125 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:23:18,125 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:23:18,126 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:23:18,126 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:23:18,129 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L56: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[46] L56-->L57: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[63] L57-->L58: Formula: (and (= v_i_6 0) (= v_j_6 v_i_6) (= v_i_6 v_max1_3) (= v_i_6 v_max2_3) (= v_i_6 v_max3_1)) InVars {i=v_i_6, max1=v_max1_3, max2=v_max2_3, j=v_j_6, max3=v_max3_1} OutVars{i=v_i_6, max1=v_max1_3, max2=v_max2_3, j=v_j_6, max3=v_max3_1} AuxVars[] AssignedVars[]" "[48] L58-->L59: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[81] L59-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:23:18,130 INFO L754 eck$LassoCheckResult]: Loop: "[68] L23-1-->L23: Formula: (< v_i_1 v_N_1) InVars {i=v_i_1, N=v_N_1} OutVars{i=v_i_1, N=v_N_1} AuxVars[] AssignedVars[]" "[70] L23-->L23-1: Formula: (and (= (let ((.cse0 (select v_A_4 v_i_8))) (ite (< v_max1_6 .cse0) .cse0 v_max1_6)) v_max1_5) (= (+ v_i_8 1) v_i_7)) InVars {A=v_A_4, i=v_i_8, max1=v_max1_6} OutVars{A=v_A_4, i=v_i_7, max1=v_max1_5} AuxVars[] AssignedVars[i, max1]" [2025-04-26 16:23:18,133 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:18,133 INFO L85 PathProgramCache]: Analyzing trace with hash 86396430, now seen corresponding path program 1 times [2025-04-26 16:23:18,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:18,138 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076306982] [2025-04-26 16:23:18,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:18,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:18,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:23:18,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:23:18,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:18,192 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:18,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:23:18,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:23:18,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:18,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:18,212 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:18,212 INFO L85 PathProgramCache]: Analyzing trace with hash 3139, now seen corresponding path program 1 times [2025-04-26 16:23:18,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:18,213 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731280002] [2025-04-26 16:23:18,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:18,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:18,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:18,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:18,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:18,220 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:18,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:18,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:18,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:18,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:18,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:18,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1422592784, now seen corresponding path program 1 times [2025-04-26 16:23:18,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:18,229 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164526541] [2025-04-26 16:23:18,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:18,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:18,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:23:18,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:23:18,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:18,238 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:18,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:23:18,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:23:18,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:18,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:18,414 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:23:18,415 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:23:18,415 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:23:18,415 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:23:18,416 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:23:18,416 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,416 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:23:18,416 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:23:18,416 INFO L132 ssoRankerPreferences]: Filename of dumped script: max-fun.wvr.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:23:18,416 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:23:18,417 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:23:18,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:18,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:18,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:18,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:18,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:18,650 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:23:18,653 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:23:18,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:23:18,659 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 [2025-04-26 16:23:18,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:18,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:18,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:18,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:18,690 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:18,690 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:18,693 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:18,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:23:18,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:23:18,705 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 [2025-04-26 16:23:18,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:18,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:18,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:18,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:18,717 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:18,717 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:18,720 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:18,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:18,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,729 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:23:18,732 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 [2025-04-26 16:23:18,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:18,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:18,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:18,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:18,745 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:18,745 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:18,748 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:18,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:18,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,757 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:23:18,760 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 [2025-04-26 16:23:18,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:18,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:18,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:18,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:18,773 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:18,773 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:18,776 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:18,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:23:18,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:23:18,788 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 [2025-04-26 16:23:18,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:18,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:18,799 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-04-26 16:23:18,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:18,811 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-04-26 16:23:18,811 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-04-26 16:23:18,824 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:18,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:18,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,833 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:23:18,835 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 [2025-04-26 16:23:18,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:18,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:18,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:18,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:18,850 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:18,850 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:18,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:23:18,875 INFO L436 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2025-04-26 16:23:18,875 INFO L437 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2025-04-26 16:23:18,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:18,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:18,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:18,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:23:18,881 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:23:18,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:23:18,898 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:23:18,898 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:23:18,898 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2025-04-26 16:23:18,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:18,907 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:23:18,960 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:18,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:23:18,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:23:18,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:23:18,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:23:18,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:23:18,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:18,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:18,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:18,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:23:18,999 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:23:18,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:23:19,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:23:19,040 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 [2025-04-26 16:23:19,042 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 113 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:19,139 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 113 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 301 states and 946 transitions. Complement of second has 7 states. [2025-04-26 16:23:19,140 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:23:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2025-04-26 16:23:19,149 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:23:19,149 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:19,149 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:23:19,149 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:19,150 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:23:19,150 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:19,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 301 states and 946 transitions. [2025-04-26 16:23:19,162 INFO L131 ngComponentsAnalysis]: Automaton has 30 accepting balls. 70 [2025-04-26 16:23:19,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 301 states to 185 states and 589 transitions. [2025-04-26 16:23:19,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2025-04-26 16:23:19,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2025-04-26 16:23:19,172 INFO L74 IsDeterministic]: Start isDeterministic. Operand 185 states and 589 transitions. [2025-04-26 16:23:19,173 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:23:19,173 INFO L218 hiAutomatonCegarLoop]: Abstraction has 185 states and 589 transitions. [2025-04-26 16:23:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 589 transitions. [2025-04-26 16:23:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 137. [2025-04-26 16:23:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 137 states have (on average 3.2481751824817517) internal successors, (in total 445), 136 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 445 transitions. [2025-04-26 16:23:19,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 137 states and 445 transitions. [2025-04-26 16:23:19,195 INFO L438 stractBuchiCegarLoop]: Abstraction has 137 states and 445 transitions. [2025-04-26 16:23:19,196 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:23:19,196 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 445 transitions. [2025-04-26 16:23:19,197 INFO L131 ngComponentsAnalysis]: Automaton has 30 accepting balls. 70 [2025-04-26 16:23:19,197 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:23:19,197 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:23:19,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:23:19,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:23:19,198 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L56: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[46] L56-->L57: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[63] L57-->L58: Formula: (and (= v_i_6 0) (= v_j_6 v_i_6) (= v_i_6 v_max1_3) (= v_i_6 v_max2_3) (= v_i_6 v_max3_1)) InVars {i=v_i_6, max1=v_max1_3, max2=v_max2_3, j=v_j_6, max3=v_max3_1} OutVars{i=v_i_6, max1=v_max1_3, max2=v_max2_3, j=v_j_6, max3=v_max3_1} AuxVars[] AssignedVars[]" "[48] L58-->L59: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[81] L59-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[84] L59-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:23:19,198 INFO L754 eck$LassoCheckResult]: Loop: "[72] L34-1-->L34: Formula: (< v_j_1 v_M_1) InVars {M=v_M_1, j=v_j_1} OutVars{M=v_M_1, j=v_j_1} AuxVars[] AssignedVars[]" "[74] L34-->L34-1: Formula: (and (= (+ v_j_8 1) v_j_7) (= (let ((.cse0 (select v_A_6 v_j_8))) (ite (< v_max2_6 .cse0) .cse0 v_max2_6)) v_max2_5)) InVars {A=v_A_6, max2=v_max2_6, j=v_j_8} OutVars{A=v_A_6, max2=v_max2_5, j=v_j_7} AuxVars[] AssignedVars[j, max2]" [2025-04-26 16:23:19,199 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1616677882, now seen corresponding path program 1 times [2025-04-26 16:23:19,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:19,199 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432952975] [2025-04-26 16:23:19,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:19,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:19,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:23:19,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:23:19,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,204 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:19,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:23:19,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:23:19,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:19,212 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,212 INFO L85 PathProgramCache]: Analyzing trace with hash 3267, now seen corresponding path program 1 times [2025-04-26 16:23:19,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:19,212 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934049231] [2025-04-26 16:23:19,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:19,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:19,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:19,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:19,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,215 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:19,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:19,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:19,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:19,219 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1150718856, now seen corresponding path program 1 times [2025-04-26 16:23:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:19,219 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814258041] [2025-04-26 16:23:19,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:19,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:19,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:23:19,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:23:19,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,230 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:19,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:23:19,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:23:19,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:19,356 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:23:19,356 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:23:19,356 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:23:19,356 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:23:19,356 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:23:19,356 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:19,356 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:23:19,356 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:23:19,356 INFO L132 ssoRankerPreferences]: Filename of dumped script: max-fun.wvr.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:23:19,356 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:23:19,356 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:23:19,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,523 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:23:19,523 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:23:19,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:19,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:19,526 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:19,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:23:19,528 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 [2025-04-26 16:23:19,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:19,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:19,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:19,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:19,539 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:19,539 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:19,542 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:19,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:23:19,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:19,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:19,549 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:19,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:23:19,552 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 [2025-04-26 16:23:19,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:19,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:19,562 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-04-26 16:23:19,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:19,571 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-04-26 16:23:19,572 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-04-26 16:23:19,580 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:19,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:23:19,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:19,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:19,588 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:19,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:23:19,591 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 [2025-04-26 16:23:19,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:19,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:19,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:19,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:19,604 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:19,604 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:19,609 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:23:19,618 INFO L436 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2025-04-26 16:23:19,619 INFO L437 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2025-04-26 16:23:19,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:19,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:19,621 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:19,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:23:19,623 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:23:19,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:23:19,640 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:23:19,640 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:23:19,640 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2025-04-26 16:23:19,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:19,646 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:23:19,656 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:23:19,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:23:19,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:23:19,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:23:19,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:23:19,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:19,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:19,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:23:19,672 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:23:19,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:23:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:23:19,686 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 [2025-04-26 16:23:19,686 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 137 states and 445 transitions. cyclomatic complexity: 347 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:19,733 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 137 states and 445 transitions. cyclomatic complexity: 347. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 409 states and 1404 transitions. Complement of second has 6 states. [2025-04-26 16:23:19,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:23:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2025-04-26 16:23:19,734 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:23:19,734 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:19,735 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 8 letters. Loop has 2 letters. [2025-04-26 16:23:19,735 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:19,735 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:23:19,735 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:19,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 1404 transitions. [2025-04-26 16:23:19,740 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 42 [2025-04-26 16:23:19,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 231 states and 791 transitions. [2025-04-26 16:23:19,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2025-04-26 16:23:19,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2025-04-26 16:23:19,746 INFO L74 IsDeterministic]: Start isDeterministic. Operand 231 states and 791 transitions. [2025-04-26 16:23:19,746 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:23:19,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 231 states and 791 transitions. [2025-04-26 16:23:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 791 transitions. [2025-04-26 16:23:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 190. [2025-04-26 16:23:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 190 states have (on average 3.5736842105263156) internal successors, (in total 679), 189 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 679 transitions. [2025-04-26 16:23:19,754 INFO L240 hiAutomatonCegarLoop]: Abstraction has 190 states and 679 transitions. [2025-04-26 16:23:19,754 INFO L438 stractBuchiCegarLoop]: Abstraction has 190 states and 679 transitions. [2025-04-26 16:23:19,754 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:23:19,754 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states and 679 transitions. [2025-04-26 16:23:19,755 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 42 [2025-04-26 16:23:19,755 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:23:19,755 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:23:19,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:23:19,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:23:19,756 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L56: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[46] L56-->L57: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[63] L57-->L58: Formula: (and (= v_i_6 0) (= v_j_6 v_i_6) (= v_i_6 v_max1_3) (= v_i_6 v_max2_3) (= v_i_6 v_max3_1)) InVars {i=v_i_6, max1=v_max1_3, max2=v_max2_3, j=v_j_6, max3=v_max3_1} OutVars{i=v_i_6, max1=v_max1_3, max2=v_max2_3, j=v_j_6, max3=v_max3_1} AuxVars[] AssignedVars[]" "[48] L58-->L59: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[81] L59-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[84] L59-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[87] L60-->L45-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-04-26 16:23:19,756 INFO L754 eck$LassoCheckResult]: Loop: "[76] L45-1-->L45: Formula: (< v_k_2 v_N_4) InVars {k=v_k_2, N=v_N_4} OutVars{k=v_k_2, N=v_N_4} AuxVars[] AssignedVars[]" "[78] L45-->L45-1: Formula: (and (= (+ v_k_8 1) v_k_7) (= (let ((.cse0 (select v_A_8 v_k_8))) (ite (< v_max3_6 .cse0) .cse0 v_max3_6)) v_max3_5)) InVars {A=v_A_8, k=v_k_8, max3=v_max3_6} OutVars{A=v_A_8, k=v_k_7, max3=v_max3_5} AuxVars[] AssignedVars[k, max3]" [2025-04-26 16:23:19,756 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1422593297, now seen corresponding path program 1 times [2025-04-26 16:23:19,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:19,756 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525334792] [2025-04-26 16:23:19,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:19,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:19,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:23:19,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:23:19,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,761 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:19,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:23:19,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:23:19,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:19,764 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,764 INFO L85 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 1 times [2025-04-26 16:23:19,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:19,764 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587936193] [2025-04-26 16:23:19,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:19,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:19,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:19,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:19,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,767 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:19,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:19,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:19,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:19,770 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:19,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1312560723, now seen corresponding path program 1 times [2025-04-26 16:23:19,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:23:19,770 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220694163] [2025-04-26 16:23:19,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:23:19,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:23:19,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:23:19,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:23:19,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,779 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:23:19,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:23:19,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:23:19,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:19,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:23:19,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:23:19,913 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:23:19,914 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:23:19,914 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:23:19,914 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:23:19,914 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:23:19,914 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:19,914 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:23:19,914 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:23:19,914 INFO L132 ssoRankerPreferences]: Filename of dumped script: max-fun.wvr.bpl_petrified1_Iteration3_Lasso [2025-04-26 16:23:19,914 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:23:19,914 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:23:19,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:19,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:23:20,105 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:23:20,106 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:23:20,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,108 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:23:20,110 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 [2025-04-26 16:23:20,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:20,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,121 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:20,121 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:20,124 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:20,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:23:20,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,132 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:23:20,138 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 [2025-04-26 16:23:20,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:20,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,150 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:20,150 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:20,152 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:20,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:20,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,161 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:23:20,166 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 [2025-04-26 16:23:20,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:20,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,178 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:20,178 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:20,180 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:20,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:23:20,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,188 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:23:20,194 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 [2025-04-26 16:23:20,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:20,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,206 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:20,206 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:20,208 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:20,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 16:23:20,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,219 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:23:20,222 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 [2025-04-26 16:23:20,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:20,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,233 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:20,233 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:20,237 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:20,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:20,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,246 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:23:20,248 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 [2025-04-26 16:23:20,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,258 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-04-26 16:23:20,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,262 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-04-26 16:23:20,262 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-04-26 16:23:20,269 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:23:20,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:23:20,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,329 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:23:20,331 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 [2025-04-26 16:23:20,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:23:20,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:23:20,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:23:20,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:23:20,342 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:23:20,342 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:23:20,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:23:20,369 INFO L436 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2025-04-26 16:23:20,370 INFO L437 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. [2025-04-26 16:23:20,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:23:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:23:20,373 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:23:20,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:23:20,374 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:23:20,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:23:20,390 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:23:20,391 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:23:20,391 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2025-04-26 16:23:20,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 16:23:20,398 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:23:20,411 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:23:20,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:23:20,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:23:20,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:20,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:23:20,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:23:20,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:23:20,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:23:20,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:23:20,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:23:20,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:23:20,429 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:23:20,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:23:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:23:20,442 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 [2025-04-26 16:23:20,443 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 190 states and 679 transitions. cyclomatic complexity: 530 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:20,490 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 190 states and 679 transitions. cyclomatic complexity: 530. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 507 states and 1780 transitions. Complement of second has 6 states. [2025-04-26 16:23:20,490 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:23:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:23:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2025-04-26 16:23:20,491 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:23:20,491 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:20,491 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 9 letters. Loop has 2 letters. [2025-04-26 16:23:20,491 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:20,491 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 7 letters. Loop has 4 letters. [2025-04-26 16:23:20,491 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:23:20,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 507 states and 1780 transitions. [2025-04-26 16:23:20,496 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:23:20,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 507 states to 0 states and 0 transitions. [2025-04-26 16:23:20,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:23:20,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:23:20,496 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:23:20,496 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:23:20,496 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:23:20,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:23:20,496 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:23:20,496 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:23:20,496 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:23:20,496 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:23:20,497 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:23:20,501 INFO L201 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:23:20 BoogieIcfgContainer [2025-04-26 16:23:20,501 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:23:20,502 INFO L158 Benchmark]: Toolchain (without parser) took 2814.26ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 84.5MB in the beginning and 74.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2025-04-26 16:23:20,502 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:23:20,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.44ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 82.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:23:20,502 INFO L158 Benchmark]: Boogie Preprocessor took 18.83ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:23:20,503 INFO L158 Benchmark]: RCFGBuilder took 197.96ms. Allocated memory is still 159.4MB. Free memory was 81.5MB in the beginning and 71.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:23:20,503 INFO L158 Benchmark]: BuchiAutomizer took 2569.07ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 71.7MB in the beginning and 74.5MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:23:20,504 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 0.76ms. Allocated memory is still 159.4MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.44ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 82.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 18.83ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 197.96ms. Allocated memory is still 159.4MB. Free memory was 81.5MB in the beginning and 71.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2569.07ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 71.7MB in the beginning and 74.5MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 89 StatesRemovedByMinimization, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 53 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital71 mio100 ax100 hnf100 lsp102 ukn61 mio100 lsp56 div100 bol100 ite100 ukn100 eq150 hnf93 smp100 dnf147 smp67 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 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 M + -1 * j and consists of 4 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:23:20,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...