/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/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/aaron2_2.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:56:24,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:56:24,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:56:24,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:56:24,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:56:24,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:56:24,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:56:24,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:56:24,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:56:24,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:56:24,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:56:24,642 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:56:24,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:56:24,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:56:24,643 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:56:24,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:56:24,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:56:24,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:56:24,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:56:24,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:56:24,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:56:24,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:56:24,645 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:56:24,646 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:56:24,646 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:56:24,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:56:24,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:56:24,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:56:24,886 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:56:24,886 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:56:24,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/aaron2_2.c.bpl [2025-04-26 16:56:24,889 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/aaron2_2.c.bpl' [2025-04-26 16:56:24,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:56:24,906 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:56:24,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:56:24,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:56:24,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:56:24,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,939 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:56:24,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:56:24,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:56:24,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:56:24,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:56:24,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,947 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:56:24,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:56:24,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:56:24,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:56:24,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/1) ... [2025-04-26 16:56:24,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:56:24,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:24,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:24,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:56:25,008 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:56:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:56:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:56:25,008 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:56:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:56:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:56:25,009 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:56:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:56:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:56:25,009 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 16:56:25,048 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:56:25,050 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:56:25,118 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:56:25,118 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:56:25,127 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:56:25,127 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:56:25,128 INFO L201 PluginConnector]: Adding new model aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:56:25 BoogieIcfgContainer [2025-04-26 16:56:25,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:56:25,129 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:56:25,129 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:56:25,135 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:56:25,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:56:25,136 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:24" (1/2) ... [2025-04-26 16:56:25,137 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30087e77 and model type aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:56:25, skipping insertion in model container [2025-04-26 16:56:25,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:56:25,137 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:56:25" (2/2) ... [2025-04-26 16:56:25,138 INFO L376 chiAutomizerObserver]: Analyzing ICFG aaron2_2.c.bpl [2025-04-26 16:56:25,186 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:56:25,230 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:56:25,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:56:25,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:25,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:25,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:56:25,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 22 places, 21 transitions, 56 flow [2025-04-26 16:56:25,303 INFO L116 PetriNetUnfolderBase]: 4/17 cut-off events. [2025-04-26 16:56:25,305 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:56:25,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 4/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 15. Up to 3 conditions per place. [2025-04-26 16:56:25,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 21 transitions, 56 flow [2025-04-26 16:56:25,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 17 transitions, 46 flow [2025-04-26 16:56:25,312 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 20 places, 17 transitions, 46 flow [2025-04-26 16:56:25,319 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:56:25,384 WARN L140 AmpleReduction]: Number of pruned transitions: 12 [2025-04-26 16:56:25,384 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:56:25,385 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 3 [2025-04-26 16:56:25,385 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:17 [2025-04-26 16:56:25,385 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:10 [2025-04-26 16:56:25,385 WARN L145 AmpleReduction]: Times succ was already a loop node:17 [2025-04-26 16:56:25,385 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:0 [2025-04-26 16:56:25,385 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:56:25,387 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 31 states, 30 states have (on average 1.9666666666666666) internal successors, (in total 59), 30 states have internal predecessors, (59), 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 16:56:25,395 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:56:25,395 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:56:25,395 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:56:25,395 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:56:25,395 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:56:25,396 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:56:25,396 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:56:25,396 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:56:25,397 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.9666666666666666) internal successors, (in total 59), 30 states have internal predecessors, (59), 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 16:56:25,410 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-04-26 16:56:25,410 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:25,410 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:25,413 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:56:25,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:56:25,413 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:56:25,414 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.9666666666666666) internal successors, (in total 59), 30 states have internal predecessors, (59), 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 16:56:25,416 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-04-26 16:56:25,416 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:25,416 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:25,416 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:56:25,416 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:56:25,421 INFO L752 eck$LassoCheckResult]: Stem: "[64] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[50] $Ultimate##0-->L22-2: Formula: (<= 0 v_tx_1) InVars {tx=v_tx_1} OutVars{tx=v_tx_1} AuxVars[] AssignedVars[]" [2025-04-26 16:56:25,421 INFO L754 eck$LassoCheckResult]: Loop: "[52] L22-2-->L22: Formula: (<= v_y1_1 v_x_1) InVars {y1=v_y1_1, x=v_x_1} OutVars{y1=v_y1_1, x=v_x_1} AuxVars[] AssignedVars[]" "[54] L22-->L22-2: Formula: (= v_x_3 (+ v_tx_2 v_x_2 1)) InVars {tx=v_tx_2, x=v_x_3} OutVars{tx=v_tx_2, x=v_x_2} AuxVars[] AssignedVars[x]" [2025-04-26 16:56:25,426 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:25,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2995, now seen corresponding path program 1 times [2025-04-26 16:56:25,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:25,432 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242129908] [2025-04-26 16:56:25,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:25,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:25,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:25,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:25,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:25,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:25,482 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:25,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:25,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:25,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:25,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:25,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:25,508 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:25,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2627, now seen corresponding path program 1 times [2025-04-26 16:56:25,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:25,508 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763719855] [2025-04-26 16:56:25,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:25,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:25,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:25,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:25,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:25,518 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:25,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:25,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:25,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:25,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:25,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:25,529 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:25,529 INFO L85 PathProgramCache]: Analyzing trace with hash 2879861, now seen corresponding path program 1 times [2025-04-26 16:56:25,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:25,529 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053004484] [2025-04-26 16:56:25,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:25,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:25,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:25,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:25,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:25,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:25,537 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:25,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:25,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:25,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:25,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:25,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:25,634 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:25,635 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:25,635 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:25,635 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:25,635 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:25,635 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:25,635 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:25,636 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:25,636 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:56:25,636 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:25,636 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:25,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:25,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:25,731 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:25,733 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:25,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:25,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:25,736 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 16:56:25,738 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 16:56:25,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:25,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:25,755 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:25,755 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:25,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:56:25,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:25,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:25,765 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 16:56:25,767 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 16:56:25,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:25,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:25,788 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 16:56:25,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:25,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:25,790 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 16:56:25,793 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 16:56:25,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:25,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:25,935 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:25,942 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 16:56:25,942 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:25,942 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:25,942 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:25,942 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:25,942 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:25,942 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:25,942 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:25,942 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:25,943 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:56:25,943 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:25,943 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:25,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:25,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:25,986 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:25,989 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:25,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:25,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:25,995 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 16:56:25,997 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 16:56:25,998 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 16:56:26,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:26,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:26,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:26,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:26,020 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:26,020 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:26,048 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:26,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:56:26,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,056 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 16:56:26,057 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 16:56:26,058 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 16:56:26,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:26,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:26,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:26,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:26,072 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:26,073 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:26,081 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:26,088 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:56:26,088 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-04-26 16:56:26,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,113 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 16:56:26,115 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 16:56:26,115 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:26,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:26,134 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:26,134 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:26,135 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, x) = -2*y1 + 2*x + 1 Supporting invariants [1*tx >= 0] [2025-04-26 16:56:26,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:56:26,151 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:26,194 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:26,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:26,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:26,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:26,203 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:26,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:26,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:26,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:26,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:26,231 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:26,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:26,284 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 16:56:26,309 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 16:56:26,311 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 31 states, 30 states have (on average 1.9666666666666666) internal successors, (in total 59), 30 states have internal predecessors, (59), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 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 16:56:26,429 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 31 states, 30 states have (on average 1.9666666666666666) internal successors, (in total 59), 30 states have internal predecessors, (59), 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 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 86 states and 197 transitions. Complement of second has 6 states. [2025-04-26 16:56:26,431 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 16:56:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 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 16:56:26,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-04-26 16:56:26,442 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:56:26,443 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:26,443 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:56:26,444 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:26,444 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:56:26,444 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:26,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 197 transitions. [2025-04-26 16:56:26,447 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2025-04-26 16:56:26,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 41 states and 104 transitions. [2025-04-26 16:56:26,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2025-04-26 16:56:26,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2025-04-26 16:56:26,453 INFO L74 IsDeterministic]: Start isDeterministic. Operand 41 states and 104 transitions. [2025-04-26 16:56:26,453 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:26,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 104 transitions. [2025-04-26 16:56:26,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 104 transitions. [2025-04-26 16:56:26,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2025-04-26 16:56:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (in total 87), 33 states have internal predecessors, (87), 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 16:56:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 87 transitions. [2025-04-26 16:56:26,469 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 87 transitions. [2025-04-26 16:56:26,469 INFO L438 stractBuchiCegarLoop]: Abstraction has 34 states and 87 transitions. [2025-04-26 16:56:26,469 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:56:26,469 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 87 transitions. [2025-04-26 16:56:26,470 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2025-04-26 16:56:26,470 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:26,470 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:26,470 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:56:26,470 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:56:26,471 INFO L752 eck$LassoCheckResult]: Stem: "[64] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[50] $Ultimate##0-->L22-2: Formula: (<= 0 v_tx_1) InVars {tx=v_tx_1} OutVars{tx=v_tx_1} AuxVars[] AssignedVars[]" "[67] L10-->$Ultimate##0: 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]" "[56] $Ultimate##0-->L39-2: Formula: (<= 0 v_tx_6) InVars {tx=v_tx_6} OutVars{tx=v_tx_6} AuxVars[] AssignedVars[]" [2025-04-26 16:56:26,471 INFO L754 eck$LassoCheckResult]: Loop: "[58] L39-2-->L39: Formula: (<= v_y2_1 v_x_5) InVars {x=v_x_5, y2=v_y2_1} OutVars{x=v_x_5, y2=v_y2_1} AuxVars[] AssignedVars[]" "[60] L39-->L39-2: Formula: (= (+ v_tx_4 v_x_6 1) v_x_7) InVars {tx=v_tx_4, x=v_x_7} OutVars{tx=v_tx_4, x=v_x_6} AuxVars[] AssignedVars[x]" [2025-04-26 16:56:26,471 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:26,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2880328, now seen corresponding path program 1 times [2025-04-26 16:56:26,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:26,471 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289396226] [2025-04-26 16:56:26,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:26,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:26,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:26,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:26,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:26,476 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:26,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:26,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:26,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:26,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:26,479 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2819, now seen corresponding path program 1 times [2025-04-26 16:56:26,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:26,479 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868739240] [2025-04-26 16:56:26,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:26,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:26,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:26,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:26,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:26,487 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:26,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:26,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:26,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:26,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:26,490 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:26,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1526970230, now seen corresponding path program 1 times [2025-04-26 16:56:26,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:26,491 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29251618] [2025-04-26 16:56:26,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:26,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:26,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:26,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:26,499 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:26,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:26,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:26,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:26,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:26,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:26,546 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:26,547 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:26,547 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:26,547 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:26,547 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:26,547 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,547 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:26,547 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:26,547 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:56:26,547 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:26,547 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:26,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,594 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:26,594 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:26,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,596 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 16:56:26,597 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 16:56:26,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:26,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:26,609 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:26,609 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:26,614 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 16:56:26,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,616 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 16:56:26,618 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 16:56:26,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:26,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:26,630 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:26,630 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:26,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:26,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,637 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 16:56:26,639 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 16:56:26,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:26,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:26,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:56:26,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,658 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 16:56:26,659 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 16:56:26,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:26,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:26,790 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:26,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:26,797 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:26,797 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:26,797 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:26,797 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:26,797 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:26,797 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,797 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:26,797 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:26,797 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:56:26,797 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:26,797 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:26,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:26,870 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:26,871 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:26,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,873 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 16:56:26,874 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 16:56:26,875 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 16:56:26,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:26,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:26,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:26,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:26,890 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:26,890 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:26,894 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:26,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:26,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,912 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 16:56:26,914 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 16:56:26,915 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 16:56:26,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:26,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:26,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:26,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:26,929 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:26,929 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:26,933 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:26,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:56:26,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,940 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 16:56:26,941 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 16:56:26,942 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 16:56:26,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:26,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:26,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:26,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:26,956 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:26,956 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:26,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:26,973 INFO L436 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2025-04-26 16:56:26,973 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-04-26 16:56:26,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:26,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:26,977 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 16:56:26,978 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 16:56:26,979 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:26,997 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 16:56:26,997 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:26,998 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:26,998 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y2) = 2*x - 2*y2 + 1 Supporting invariants [1*tx >= 0] [2025-04-26 16:56:27,004 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 16:56:27,009 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:27,043 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:27,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:27,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:27,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:27,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:27,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:27,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:27,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:27,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:27,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:27,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:27,085 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:27,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:27,110 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 16:56:27,111 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:27,111 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 87 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 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 16:56:27,194 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 87 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 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 99 states and 276 transitions. Complement of second has 7 states. [2025-04-26 16:56:27,195 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 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 16:56:27,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2025-04-26 16:56:27,196 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:56:27,196 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:27,196 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:56:27,196 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:27,196 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:56:27,196 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:27,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 276 transitions. [2025-04-26 16:56:27,199 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:56:27,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 0 states and 0 transitions. [2025-04-26 16:56:27,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:56:27,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:56:27,200 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:56:27,200 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:56:27,200 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:56:27,200 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:56:27,200 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:56:27,200 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:56:27,200 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:56:27,200 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:56:27,200 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:56:27,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 16:56:27,216 INFO L201 PluginConnector]: Adding new model aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:56:27 BoogieIcfgContainer [2025-04-26 16:56:27,216 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:56:27,217 INFO L158 Benchmark]: Toolchain (without parser) took 2310.85ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 85.7MB in the beginning and 64.3MB in the end (delta: 21.4MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2025-04-26 16:56:27,217 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.75ms. Allocated memory is still 159.4MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:56:27,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.01ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 83.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:56:27,218 INFO L158 Benchmark]: Boogie Preprocessor took 19.31ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:56:27,218 INFO L158 Benchmark]: RCFGBuilder took 168.15ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 74.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:56:27,218 INFO L158 Benchmark]: BuchiAutomizer took 2087.36ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.0MB in the beginning and 64.3MB in the end (delta: 9.7MB). Peak memory consumption was 1.4MB. Max. memory is 8.0GB. [2025-04-26 16:56:27,220 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 0.75ms. Allocated memory is still 159.4MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.01ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 83.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 19.31ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 168.15ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 74.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2087.36ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.0MB in the beginning and 64.3MB in the end (delta: 9.7MB). Peak memory consumption was 1.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 9 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 161, Number of transitions in reduction automaton: 59, Number of states in reduction automaton: 31, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 + -2 * y1 and consists of 4 locations. One deterministic module has affine ranking function -2 * y2 + 2 * x + 1 and consists of 5 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:56:27,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...