/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/3_thr/complex_thr1_3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:42:27,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:42:27,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:42:27,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:42:27,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:42:27,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:42:27,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:42:27,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:42:27,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:42:27,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:42:27,327 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:42:27,327 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:42:27,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:42:27,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:42:27,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:42:27,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:42:27,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:42:27,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:42:27,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:42:27,329 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:42:27,329 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:42:27,329 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:42:27,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:42:27,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:42:27,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:42:27,573 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:42:27,573 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:42:27,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/complex_thr1_3.c.bpl [2025-04-26 18:42:27,575 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/complex_thr1_3.c.bpl' [2025-04-26 18:42:27,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:42:27,596 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:42:27,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:42:27,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:42:27,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:42:27,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,628 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:42:27,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:42:27,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:42:27,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:42:27,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:42:27,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:42:27,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:42:27,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:42:27,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:42:27,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/1) ... [2025-04-26 18:42:27,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:42:27,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:27,680 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 18:42:27,684 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 18:42:27,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:42:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:42:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:42:27,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:42:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:42:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:42:27,703 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 18:42:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 18:42:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 18:42:27,703 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:42:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:42:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:42:27,703 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 18:42:27,740 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:42:27,742 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:42:27,822 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:42:27,822 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:42:27,829 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:42:27,829 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:42:27,829 INFO L201 PluginConnector]: Adding new model complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:42:27 BoogieIcfgContainer [2025-04-26 18:42:27,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:42:27,830 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:42:27,830 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:42:27,834 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:42:27,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:42:27,834 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:27" (1/2) ... [2025-04-26 18:42:27,835 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13274cc6 and model type complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:42:27, skipping insertion in model container [2025-04-26 18:42:27,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:42:27,835 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:42:27" (2/2) ... [2025-04-26 18:42:27,836 INFO L376 chiAutomizerObserver]: Analyzing ICFG complex_thr1_3.c.bpl [2025-04-26 18:42:27,887 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 18:42:27,923 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:42:27,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:42:27,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:27,927 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 18:42:27,928 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 18:42:27,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 89 flow [2025-04-26 18:42:28,002 INFO L116 PetriNetUnfolderBase]: 5/28 cut-off events. [2025-04-26 18:42:28,006 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 18:42:28,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 5/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-04-26 18:42:28,011 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 34 transitions, 89 flow [2025-04-26 18:42:28,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 28 transitions, 74 flow [2025-04-26 18:42:28,015 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 33 places, 28 transitions, 74 flow [2025-04-26 18:42:28,016 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 28 transitions, 74 flow [2025-04-26 18:42:28,059 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 254 states, 253 states have (on average 3.0948616600790513) internal successors, (in total 783), 253 states have internal predecessors, (783), 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 18:42:28,064 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 254 states, 253 states have (on average 3.0948616600790513) internal successors, (in total 783), 253 states have internal predecessors, (783), 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 18:42:28,066 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:42:28,180 WARN L140 AmpleReduction]: Number of pruned transitions: 264 [2025-04-26 18:42:28,184 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 18:42:28,184 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 56 [2025-04-26 18:42:28,184 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:24 [2025-04-26 18:42:28,184 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:135 [2025-04-26 18:42:28,184 WARN L145 AmpleReduction]: Times succ was already a loop node:60 [2025-04-26 18:42:28,184 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:64 [2025-04-26 18:42:28,184 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:42:28,185 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 216 states, 215 states have (on average 1.8511627906976744) internal successors, (in total 398), 215 states have internal predecessors, (398), 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 18:42:28,193 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:42:28,193 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:42:28,193 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:42:28,193 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:42:28,193 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:42:28,193 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:42:28,193 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:42:28,193 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:42:28,195 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 216 states, 215 states have (on average 1.8511627906976744) internal successors, (in total 398), 215 states have internal predecessors, (398), 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 18:42:28,212 INFO L131 ngComponentsAnalysis]: Automaton has 44 accepting balls. 168 [2025-04-26 18:42:28,212 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:28,212 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:28,215 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:42:28,215 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 18:42:28,216 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:42:28,216 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 216 states, 215 states have (on average 1.8511627906976744) internal successors, (in total 398), 215 states have internal predecessors, (398), 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 18:42:28,220 INFO L131 ngComponentsAnalysis]: Automaton has 44 accepting balls. 168 [2025-04-26 18:42:28,221 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:28,221 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:28,221 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:42:28,222 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 18:42:28,226 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[100] L13-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 18:42:28,226 INFO L754 eck$LassoCheckResult]: Loop: "[88] L44-->L46: Formula: (< v_x_4 v_y_5) InVars {y=v_y_5, x=v_x_4} OutVars{y=v_y_5, x=v_x_4} AuxVars[] AssignedVars[]" "[90] L46-->L44: Formula: (= (+ v_x_6 1) v_x_5) InVars {x=v_x_6} OutVars{x=v_x_5} AuxVars[] AssignedVars[x]" [2025-04-26 18:42:28,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash 125402, now seen corresponding path program 1 times [2025-04-26 18:42:28,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:28,235 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042680514] [2025-04-26 18:42:28,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:28,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:28,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:28,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:28,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:28,289 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:28,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:28,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:28,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:28,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:28,312 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:28,314 INFO L85 PathProgramCache]: Analyzing trace with hash 3779, now seen corresponding path program 1 times [2025-04-26 18:42:28,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:28,314 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626567296] [2025-04-26 18:42:28,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:28,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:28,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:42:28,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:42:28,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:28,326 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:28,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:42:28,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:42:28,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:28,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:28,333 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash 120514140, now seen corresponding path program 1 times [2025-04-26 18:42:28,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:28,333 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780395083] [2025-04-26 18:42:28,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:28,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:28,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:28,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:28,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:28,344 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:28,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:28,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:28,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:28,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:28,440 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:28,441 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:28,441 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:28,441 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:28,441 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:28,441 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:28,441 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:28,441 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:28,441 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:42:28,441 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:28,441 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:28,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:28,516 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:28,517 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:28,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:28,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:28,520 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 18:42:28,522 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 18:42:28,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:28,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:28,551 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 18:42:28,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:28,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:28,553 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 18:42:28,558 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 18:42:28,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:28,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:28,631 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:28,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 18:42:28,635 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:28,636 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:28,636 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:28,636 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:28,636 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:28,636 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:28,636 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:28,636 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:28,636 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:42:28,636 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:28,636 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:28,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:28,660 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:28,662 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:28,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:28,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:28,665 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 18:42:28,665 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 18:42:28,666 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 18:42:28,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:28,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:42:28,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:28,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:28,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:28,683 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:42:28,683 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:42:28,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:28,693 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:42:28,693 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:42:28,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:28,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:28,696 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 18:42:28,698 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 18:42:28,700 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:28,703 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 18:42:28,703 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:42:28,704 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:28,704 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y) = -1*x + 1*y Supporting invariants [] [2025-04-26 18:42:28,710 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 18:42:28,712 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:42:28,739 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:28,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:28,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:28,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:28,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:42:28,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:28,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:42:28,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:42:28,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:28,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:28,760 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:42:28,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:28,775 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 18:42:28,793 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 18:42:28,796 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 216 states, 215 states have (on average 1.8511627906976744) internal successors, (in total 398), 215 states have internal predecessors, (398), 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 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 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 18:42:28,917 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 216 states, 215 states have (on average 1.8511627906976744) internal successors, (in total 398), 215 states have internal predecessors, (398), 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 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 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 477 states and 913 transitions. Complement of second has 6 states. [2025-04-26 18:42:28,918 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 18:42:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 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 18:42:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2025-04-26 18:42:28,929 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 18:42:28,929 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:28,929 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 18:42:28,929 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:28,929 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 18:42:28,929 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:28,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 477 states and 913 transitions. [2025-04-26 18:42:28,941 INFO L131 ngComponentsAnalysis]: Automaton has 41 accepting balls. 140 [2025-04-26 18:42:28,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 477 states to 312 states and 586 transitions. [2025-04-26 18:42:28,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2025-04-26 18:42:28,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 206 [2025-04-26 18:42:28,953 INFO L74 IsDeterministic]: Start isDeterministic. Operand 312 states and 586 transitions. [2025-04-26 18:42:28,954 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:28,954 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 586 transitions. [2025-04-26 18:42:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 586 transitions. [2025-04-26 18:42:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 284. [2025-04-26 18:42:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 284 states have (on average 1.8485915492957747) internal successors, (in total 525), 283 states have internal predecessors, (525), 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 18:42:28,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 525 transitions. [2025-04-26 18:42:28,989 INFO L240 hiAutomatonCegarLoop]: Abstraction has 284 states and 525 transitions. [2025-04-26 18:42:28,990 INFO L438 stractBuchiCegarLoop]: Abstraction has 284 states and 525 transitions. [2025-04-26 18:42:28,990 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:42:28,990 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 284 states and 525 transitions. [2025-04-26 18:42:28,992 INFO L131 ngComponentsAnalysis]: Automaton has 41 accepting balls. 140 [2025-04-26 18:42:28,992 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:28,992 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:28,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 18:42:28,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:28,993 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[75] L25-->L26: Formula: (= v_i_1 v_x_1) InVars {x=v_x_1} OutVars{i=v_i_1, x=v_x_1} AuxVars[] AssignedVars[i]" "[76] L26-->L28-1: Formula: (and (< 0 v_x_2) (< 0 v_y_1)) InVars {y=v_y_1, x=v_x_2} OutVars{y=v_y_1, x=v_x_2} AuxVars[] AssignedVars[]" [2025-04-26 18:42:28,993 INFO L754 eck$LassoCheckResult]: Loop: "[79] L28-1-->L30: Formula: (< 0 v_i_2) InVars {i=v_i_2} OutVars{i=v_i_2} AuxVars[] AssignedVars[]" "[83] L30-->L31: Formula: (= (+ v_i_3 1) v_i_4) InVars {i=v_i_4} OutVars{i=v_i_3} AuxVars[] AssignedVars[i]" "[85] L31-->L28-1: Formula: (= (+ v_z_3 1) v_z_2) InVars {z=v_z_3} OutVars{z=v_z_2} AuxVars[] AssignedVars[z]" [2025-04-26 18:42:28,993 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 3886763, now seen corresponding path program 1 times [2025-04-26 18:42:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:28,994 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933930761] [2025-04-26 18:42:28,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:28,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:42:29,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:42:29,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,000 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:42:29,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:42:29,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,006 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash 108368, now seen corresponding path program 1 times [2025-04-26 18:42:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,007 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888339543] [2025-04-26 18:42:29,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:29,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:29,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,013 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:29,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:29,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,019 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash -173481882, now seen corresponding path program 1 times [2025-04-26 18:42:29,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,020 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26934946] [2025-04-26 18:42:29,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:42:29,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:42:29,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,028 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:42:29,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:42:29,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,062 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:29,062 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:29,062 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:29,062 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:29,062 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:29,062 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,062 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:29,062 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:29,062 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:42:29,062 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:29,062 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:29,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,103 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:29,103 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:29,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,106 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 18:42:29,108 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 18:42:29,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:29,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,125 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 18:42:29,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,127 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 18:42:29,128 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 18:42:29,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:29,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,152 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:29,156 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 18:42:29,156 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:29,156 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:29,156 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:29,156 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:29,157 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:29,157 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,157 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:29,157 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:29,157 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:42:29,157 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:29,157 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:29,157 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,193 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:29,193 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:29,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,196 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 18:42:29,197 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 18:42:29,198 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 18:42:29,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:29,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:42:29,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:29,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:29,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:29,209 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:42:29,209 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:42:29,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:29,215 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:42:29,215 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:42:29,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,219 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 18:42:29,220 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 18:42:29,221 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:29,224 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 18:42:29,226 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 18:42:29,226 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:42:29,226 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:29,226 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i) = 1*i Supporting invariants [] [2025-04-26 18:42:29,233 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 18:42:29,234 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:42:29,246 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:42:29,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:42:29,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:29,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:42:29,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:29,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:29,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:29,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:29,266 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:42:29,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:29,308 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 18:42:29,308 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:42:29,309 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 284 states and 525 transitions. cyclomatic complexity: 299 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 18:42:29,362 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 284 states and 525 transitions. cyclomatic complexity: 299. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 788 states and 1510 transitions. Complement of second has 7 states. [2025-04-26 18:42:29,363 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 18:42:29,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 18:42:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2025-04-26 18:42:29,364 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 57 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 18:42:29,364 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:29,364 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 57 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 18:42:29,365 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:29,365 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 57 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 18:42:29,365 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:29,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 788 states and 1510 transitions. [2025-04-26 18:42:29,371 INFO L131 ngComponentsAnalysis]: Automaton has 35 accepting balls. 99 [2025-04-26 18:42:29,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 788 states to 585 states and 1112 transitions. [2025-04-26 18:42:29,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 235 [2025-04-26 18:42:29,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 270 [2025-04-26 18:42:29,377 INFO L74 IsDeterministic]: Start isDeterministic. Operand 585 states and 1112 transitions. [2025-04-26 18:42:29,377 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:29,377 INFO L218 hiAutomatonCegarLoop]: Abstraction has 585 states and 1112 transitions. [2025-04-26 18:42:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states and 1112 transitions. [2025-04-26 18:42:29,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 396. [2025-04-26 18:42:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 396 states have (on average 1.9696969696969697) internal successors, (in total 780), 395 states have internal predecessors, (780), 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 18:42:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 780 transitions. [2025-04-26 18:42:29,393 INFO L240 hiAutomatonCegarLoop]: Abstraction has 396 states and 780 transitions. [2025-04-26 18:42:29,393 INFO L438 stractBuchiCegarLoop]: Abstraction has 396 states and 780 transitions. [2025-04-26 18:42:29,393 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:42:29,393 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 396 states and 780 transitions. [2025-04-26 18:42:29,394 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 79 [2025-04-26 18:42:29,396 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:29,396 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:29,396 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:42:29,396 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 18:42:29,397 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[100] L13-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[88] L44-->L46: Formula: (< v_x_4 v_y_5) InVars {y=v_y_5, x=v_x_4} OutVars{y=v_y_5, x=v_x_4} AuxVars[] AssignedVars[]" "[103] L14-->L53: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-04-26 18:42:29,397 INFO L754 eck$LassoCheckResult]: Loop: "[92] L53-->L55: Formula: (< v_x2_1 v_y_7) InVars {y=v_y_7, x2=v_x2_1} OutVars{y=v_y_7, x2=v_x2_1} AuxVars[] AssignedVars[]" "[94] L55-->L53: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-04-26 18:42:29,397 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,397 INFO L85 PathProgramCache]: Analyzing trace with hash 120514153, now seen corresponding path program 1 times [2025-04-26 18:42:29,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,397 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852209943] [2025-04-26 18:42:29,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:29,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:29,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,402 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:29,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:29,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,409 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 1 times [2025-04-26 18:42:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,409 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170782445] [2025-04-26 18:42:29,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:42:29,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:42:29,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,412 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:42:29,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:42:29,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,414 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,414 INFO L85 PathProgramCache]: Analyzing trace with hash -150013013, now seen corresponding path program 1 times [2025-04-26 18:42:29,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,414 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385109551] [2025-04-26 18:42:29,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:42:29,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:42:29,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,420 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:42:29,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:42:29,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,445 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:29,446 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:29,446 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:29,446 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:29,446 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:29,446 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,446 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:29,446 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:29,446 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:42:29,446 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:29,446 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:29,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,463 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:29,463 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:29,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,465 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 18:42:29,466 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 18:42:29,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:29,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,487 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 18:42:29,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,489 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 18:42:29,490 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 18:42:29,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:29,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,553 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:29,557 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 18:42:29,558 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:29,558 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:29,558 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:29,558 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:29,558 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:29,558 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,558 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:29,558 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:29,558 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:42:29,558 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:29,558 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:29,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,575 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:29,575 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:29,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,578 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 18:42:29,579 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 18:42:29,580 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 18:42:29,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:29,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:42:29,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:29,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:29,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:29,592 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:42:29,592 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:42:29,594 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:29,598 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:42:29,598 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:42:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,599 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 18:42:29,601 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 18:42:29,602 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:29,605 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 18:42:29,605 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:42:29,605 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:29,605 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, y) = -1*x2 + 1*y Supporting invariants [] [2025-04-26 18:42:29,611 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 18:42:29,613 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:42:29,627 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:29,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:29,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:29,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:42:29,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:29,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:42:29,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:42:29,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:29,646 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:42:29,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:29,659 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 18:42:29,659 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 18:42:29,660 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 396 states and 780 transitions. cyclomatic complexity: 448 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 18:42:29,717 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 396 states and 780 transitions. cyclomatic complexity: 448. 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 865 states and 1732 transitions. Complement of second has 6 states. [2025-04-26 18:42:29,718 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 18:42:29,718 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 18:42:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2025-04-26 18:42:29,718 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 18:42:29,719 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:29,719 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 18:42:29,719 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:29,719 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 18:42:29,719 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:29,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 865 states and 1732 transitions. [2025-04-26 18:42:29,724 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 63 [2025-04-26 18:42:29,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 865 states to 582 states and 1169 transitions. [2025-04-26 18:42:29,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2025-04-26 18:42:29,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 172 [2025-04-26 18:42:29,728 INFO L74 IsDeterministic]: Start isDeterministic. Operand 582 states and 1169 transitions. [2025-04-26 18:42:29,728 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:29,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 582 states and 1169 transitions. [2025-04-26 18:42:29,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states and 1169 transitions. [2025-04-26 18:42:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 556. [2025-04-26 18:42:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 556 states have (on average 2.0107913669064748) internal successors, (in total 1118), 555 states have internal predecessors, (1118), 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 18:42:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1118 transitions. [2025-04-26 18:42:29,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 556 states and 1118 transitions. [2025-04-26 18:42:29,741 INFO L438 stractBuchiCegarLoop]: Abstraction has 556 states and 1118 transitions. [2025-04-26 18:42:29,741 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 18:42:29,741 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 556 states and 1118 transitions. [2025-04-26 18:42:29,743 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 63 [2025-04-26 18:42:29,743 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:29,743 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:29,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:42:29,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:29,744 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[75] L25-->L26: Formula: (= v_i_1 v_x_1) InVars {x=v_x_1} OutVars{i=v_i_1, x=v_x_1} AuxVars[] AssignedVars[i]" "[76] L26-->L28-1: Formula: (and (< 0 v_x_2) (< 0 v_y_1)) InVars {y=v_y_1, x=v_x_2} OutVars{y=v_y_1, x=v_x_2} AuxVars[] AssignedVars[]" "[78] L28-1-->L33-1: Formula: (<= v_i_5 0) InVars {i=v_i_5} OutVars{i=v_i_5} AuxVars[] AssignedVars[]" [2025-04-26 18:42:29,744 INFO L754 eck$LassoCheckResult]: Loop: "[82] L33-1-->L35: Formula: (< v_i_6 v_y_2) InVars {i=v_i_6, y=v_y_2} OutVars{i=v_i_6, y=v_y_2} AuxVars[] AssignedVars[]" "[84] L35-->L36: Formula: (= (+ v_i_8 1) v_i_7) InVars {i=v_i_8} OutVars{i=v_i_7} AuxVars[] AssignedVars[i]" "[86] L36-->L33-1: Formula: (= v_z_5 (+ v_z_4 1)) InVars {z=v_z_5} OutVars{z=v_z_4} AuxVars[] AssignedVars[z]" [2025-04-26 18:42:29,744 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash 120489731, now seen corresponding path program 1 times [2025-04-26 18:42:29,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,744 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219633640] [2025-04-26 18:42:29,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:29,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:29,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:29,790 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 18:42:29,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:42:29,791 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219633640] [2025-04-26 18:42:29,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219633640] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:42:29,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:42:29,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 18:42:29,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495038425] [2025-04-26 18:42:29,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:42:29,794 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-04-26 18:42:29,794 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash 111283, now seen corresponding path program 1 times [2025-04-26 18:42:29,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:29,795 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931619744] [2025-04-26 18:42:29,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:29,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:29,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:29,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:29,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,798 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:29,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:29,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:29,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:29,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:29,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:29,822 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:29,822 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:29,822 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:29,822 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:29,822 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:29,822 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,822 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:29,822 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:29,822 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:42:29,822 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:29,822 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:29,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:29,848 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:29,848 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:29,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,850 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 18:42:29,854 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 18:42:29,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:29,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:29,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,872 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 18:42:29,873 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 18:42:29,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:29,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,897 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:29,897 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {z=0} Honda state: {z=0} Generalized eigenvectors: [{z=-1}, {z=7}, {z=-7}] Lambdas: [8, 1, 1] Nus: [1, 0] [2025-04-26 18:42:29,913 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 18:42:29,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,915 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 18:42:29,916 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 18:42:29,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:29,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:29,934 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 18:42:29,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:29,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:29,937 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 18:42:29,938 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 18:42:29,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:29,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:30,004 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:30,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-04-26 18:42:30,009 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:30,009 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:30,009 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:30,009 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:30,009 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:30,009 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:30,009 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:30,009 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:30,010 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:42:30,010 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:30,010 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:30,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:30,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:30,043 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:30,043 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:30,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:30,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:30,045 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 18:42:30,047 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 18:42:30,047 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 18:42:30,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:30,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:42:30,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:30,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:30,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:30,058 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:42:30,058 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:42:30,060 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:30,065 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 18:42:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:30,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:30,067 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 18:42:30,069 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 18:42:30,069 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 18:42:30,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:30,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:42:30,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:30,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:30,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:30,080 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:42:30,080 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:42:30,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:30,085 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:42:30,085 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:42:30,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:30,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:30,087 INFO L229 MonitoredProcess]: Starting monitored process 21 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 18:42:30,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 18:42:30,088 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:30,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:30,091 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:42:30,091 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:30,092 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, i) = 1*y - 1*i Supporting invariants [] [2025-04-26 18:42:30,097 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 18:42:30,098 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:42:30,112 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:30,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:30,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:30,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:30,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:30,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:42:30,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:30,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:30,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:30,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:30,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:30,124 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:42:30,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:30,156 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 18:42:30,157 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:42:30,157 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 556 states and 1118 transitions. cyclomatic complexity: 646 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 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 18:42:30,201 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 556 states and 1118 transitions. cyclomatic complexity: 646. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 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 911 states and 1856 transitions. Complement of second has 6 states. [2025-04-26 18:42:30,202 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 18:42:30,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 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 18:42:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2025-04-26 18:42:30,203 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 51 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 18:42:30,203 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:30,203 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 51 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 18:42:30,203 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:30,203 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 51 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 18:42:30,203 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:30,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 911 states and 1856 transitions. [2025-04-26 18:42:30,212 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:42:30,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 911 states to 0 states and 0 transitions. [2025-04-26 18:42:30,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:42:30,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:42:30,212 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:42:30,212 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:42:30,212 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:30,212 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:30,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:42:30,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-26 18:42:30,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-26 18:42:30,216 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 18:42:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:42:30,217 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 18:42:30,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 18:42:30,217 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:42:30,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 18:42:30,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:42:30,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:42:30,217 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:42:30,217 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:42:30,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:30,217 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:30,217 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 18:42:30,218 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:30,218 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 18:42:30,218 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 18:42:30,218 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:42:30,218 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:42:30,229 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 18:42:30,230 INFO L201 PluginConnector]: Adding new model complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:42:30 BoogieIcfgContainer [2025-04-26 18:42:30,230 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:42:30,231 INFO L158 Benchmark]: Toolchain (without parser) took 2635.38ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 86.5MB in the beginning and 90.1MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:30,231 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:30,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.98ms. Allocated memory is still 159.4MB. Free memory was 86.4MB in the beginning and 84.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:30,231 INFO L158 Benchmark]: Boogie Preprocessor took 25.16ms. Allocated memory is still 159.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 18:42:30,232 INFO L158 Benchmark]: RCFGBuilder took 172.86ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 73.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 18:42:30,232 INFO L158 Benchmark]: BuchiAutomizer took 2400.46ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.3MB in the beginning and 90.1MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:30,233 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 0.20ms. Allocated memory is still 159.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.98ms. Allocated memory is still 159.4MB. Free memory was 86.4MB in the beginning and 84.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 25.16ms. Allocated memory is still 159.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 172.86ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 73.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2400.46ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.3MB in the beginning and 90.1MB in the end (delta: -16.8MB). 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 2.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 243 StatesRemovedByMinimization, 3 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 119 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp84 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 264, Number of transitions in reduction automaton: 398, Number of states in reduction automaton: 216, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x + y and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function y + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function y + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these 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 18:42:30,247 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...