/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 ../../../trunk/examples/concurrent/bpl/regression/NonAtomicIncrement_2Threads_Loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:38:11,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:38:11,497 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:38:11,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:38:11,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:38:11,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:38:11,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:38:11,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:38:11,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:38:11,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:38:11,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:38:11,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:38:11,519 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:38:11,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:38:11,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:38:11,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:38:11,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:38:11,520 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:38:11,520 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:38:11,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:38:11,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:38:11,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:38:11,748 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:38:11,748 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:38:11,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/regression/NonAtomicIncrement_2Threads_Loop.bpl [2025-04-26 18:38:11,751 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/regression/NonAtomicIncrement_2Threads_Loop.bpl' [2025-04-26 18:38:11,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:38:11,764 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:38:11,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:38:11,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:38:11,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:38:11,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,801 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:38:11,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:38:11,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:38:11,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:38:11,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:38:11,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,813 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:38:11,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:38:11,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:38:11,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:38:11,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/1) ... [2025-04-26 18:38:11,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:38:11,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:11,847 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 18:38:11,856 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 18:38:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure fistIncrementProcess [2025-04-26 18:38:11,877 INFO L138 BoogieDeclarations]: Found implementation of procedure fistIncrementProcess [2025-04-26 18:38:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:38:11,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:38:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure secondIncrementProcess [2025-04-26 18:38:11,878 INFO L138 BoogieDeclarations]: Found implementation of procedure secondIncrementProcess [2025-04-26 18:38:11,879 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 18:38:11,912 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:38:11,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:38:11,988 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:38:11,989 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:38:12,001 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:38:12,002 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:38:12,002 INFO L201 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:38:12 BoogieIcfgContainer [2025-04-26 18:38:12,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:38:12,003 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:38:12,003 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:38:12,009 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:38:12,010 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:38:12,010 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:38:11" (1/2) ... [2025-04-26 18:38:12,012 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@156710f6 and model type NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:38:12, skipping insertion in model container [2025-04-26 18:38:12,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:38:12,012 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:38:12" (2/2) ... [2025-04-26 18:38:12,013 INFO L376 chiAutomizerObserver]: Analyzing ICFG NonAtomicIncrement_2Threads_Loop.bpl [2025-04-26 18:38:12,070 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-26 18:38:12,114 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:38:12,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:38:12,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,117 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 18:38:12,119 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 18:38:12,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 76 flow [2025-04-26 18:38:12,187 INFO L116 PetriNetUnfolderBase]: 3/24 cut-off events. [2025-04-26 18:38:12,190 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-26 18:38:12,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 24 events. 3/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2025-04-26 18:38:12,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 76 flow [2025-04-26 18:38:12,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 24 transitions, 66 flow [2025-04-26 18:38:12,199 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 27 places, 24 transitions, 66 flow [2025-04-26 18:38:12,200 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 24 transitions, 66 flow [2025-04-26 18:38:12,217 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 76 states, 74 states have (on average 1.9864864864864864) internal successors, (in total 147), 75 states have internal predecessors, (147), 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 18:38:12,218 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 76 states, 74 states have (on average 1.9864864864864864) internal successors, (in total 147), 75 states have internal predecessors, (147), 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 18:38:12,223 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:38:12,280 WARN L140 AmpleReduction]: Number of pruned transitions: 24 [2025-04-26 18:38:12,280 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 18:38:12,281 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 0 [2025-04-26 18:38:12,281 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:24 [2025-04-26 18:38:12,281 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:24 [2025-04-26 18:38:12,281 WARN L145 AmpleReduction]: Times succ was already a loop node:7 [2025-04-26 18:38:12,281 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:3 [2025-04-26 18:38:12,281 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:38:12,281 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 49 states, 47 states have (on average 1.3191489361702127) internal successors, (in total 62), 48 states have internal predecessors, (62), 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 18:38:12,286 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:38:12,286 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:38:12,286 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:38:12,286 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:38:12,286 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:38:12,287 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:38:12,287 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:38:12,287 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:38:12,288 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 47 states have (on average 1.3191489361702127) internal successors, (in total 62), 48 states have internal predecessors, (62), 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 18:38:12,296 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2025-04-26 18:38:12,296 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:38:12,296 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:38:12,300 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:38:12,300 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:38:12,300 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:38:12,301 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 47 states have (on average 1.3191489361702127) internal successors, (in total 62), 48 states have internal predecessors, (62), 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 18:38:12,304 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2025-04-26 18:38:12,304 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:38:12,304 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:38:12,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:38:12,305 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:38:12,309 INFO L752 eck$LassoCheckResult]: Stem: "[44] $Ultimate##0-->L19: Formula: (= v_x_5 0) InVars {} OutVars{x=v_x_5} AuxVars[] AssignedVars[x]" "[68] L19-->$Ultimate##0: Formula: (= v_fistIncrementProcessThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_6, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_12, fistIncrementProcessThread1of1ForFork0_thidvar0=v_fistIncrementProcessThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx, fistIncrementProcessThread1of1ForFork0_i, fistIncrementProcessThread1of1ForFork0_thidvar0]" "[52] $Ultimate##0-->L34-1: Formula: (= 0 v_fistIncrementProcessThread1of1ForFork0_i_1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_1} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i]" [2025-04-26 18:38:12,310 INFO L754 eck$LassoCheckResult]: Loop: "[54] L34-1-->L35: Formula: (< v_fistIncrementProcessThread1of1ForFork0_i_5 3) InVars {fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_5} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_5} AuxVars[] AssignedVars[]" "[56] L35-->L36: Formula: (= v_fistIncrementProcessThread1of1ForFork0_localx_1 v_x_1) InVars {x=v_x_1} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_1, x=v_x_1} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx]" "[57] L36-->L37: Formula: (= (+ v_fistIncrementProcessThread1of1ForFork0_localx_3 1) v_x_2) InVars {fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_3} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_3, x=v_x_2} AuxVars[] AssignedVars[x]" "[58] L37-->L34-1: Formula: (= (+ 1 v_fistIncrementProcessThread1of1ForFork0_i_7) v_fistIncrementProcessThread1of1ForFork0_i_8) InVars {fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_7} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_8} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i]" [2025-04-26 18:38:12,313 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash 74235, now seen corresponding path program 1 times [2025-04-26 18:38:12,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:38:12,318 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800645009] [2025-04-26 18:38:12,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:38:12,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:38:12,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:38:12,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:38:12,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:12,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:12,369 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:38:12,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:38:12,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:38:12,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:12,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:12,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:38:12,387 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:12,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2587876, now seen corresponding path program 1 times [2025-04-26 18:38:12,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:38:12,388 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332106090] [2025-04-26 18:38:12,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:38:12,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:38:12,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:38:12,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:38:12,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:12,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:12,398 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:38:12,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:38:12,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:38:12,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:12,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:12,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:38:12,407 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:12,407 INFO L85 PathProgramCache]: Analyzing trace with hash -160230946, now seen corresponding path program 1 times [2025-04-26 18:38:12,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:38:12,407 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460997927] [2025-04-26 18:38:12,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:38:12,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:38:12,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:38:12,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:38:12,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:12,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:12,412 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:38:12,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:38:12,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:38:12,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:12,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:12,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:38:12,480 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:38:12,481 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:38:12,481 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:38:12,481 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:38:12,481 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:38:12,482 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,482 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:38:12,482 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:38:12,482 INFO L132 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_petrified1_Iteration1_Loop [2025-04-26 18:38:12,482 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:38:12,482 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:38:12,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:12,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:12,566 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:38:12,566 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:38:12,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,570 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 18:38:12,572 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 18:38:12,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:38:12,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:12,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 18:38:12,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,609 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 18:38:12,611 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 18:38:12,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:38:12,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:12,804 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:38:12,804 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fistIncrementProcessThread1of1ForFork0_localx=0, x=1} Honda state: {fistIncrementProcessThread1of1ForFork0_localx=0, x=1} Generalized eigenvectors: [{fistIncrementProcessThread1of1ForFork0_localx=-2, x=-3}, {fistIncrementProcessThread1of1ForFork0_localx=-1, x=0}, {fistIncrementProcessThread1of1ForFork0_localx=4, x=4}] Lambdas: [1, 0, 1] Nus: [1, 0] [2025-04-26 18:38:12,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 18:38:12,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,812 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 18:38:12,814 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 18:38:12,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:38:12,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:12,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 18:38:12,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,835 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 18:38:12,837 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 18:38:12,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:38:12,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:12,863 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:38:12,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 18:38:12,867 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:38:12,867 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:38:12,867 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:38:12,867 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:38:12,867 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:38:12,867 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,867 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:38:12,867 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:38:12,868 INFO L132 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_petrified1_Iteration1_Loop [2025-04-26 18:38:12,868 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:38:12,868 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:38:12,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:12,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:12,907 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:38:12,910 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:38:12,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,913 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 18:38:12,914 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 18:38:12,916 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 18:38:12,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:38:12,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:38:12,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:38:12,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:38:12,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:38:12,930 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:38:12,930 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:38:12,933 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:38:12,938 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 18:38:12,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,941 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 18:38:12,942 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 18:38:12,943 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 18:38:12,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:38:12,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:38:12,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:38:12,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:38:12,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:38:12,953 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:38:12,953 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:38:12,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:38:12,957 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:38:12,957 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:38:12,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:12,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:12,960 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 18:38:12,961 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 18:38:12,962 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:38:12,964 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 18:38:12,965 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:38:12,965 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:38:12,965 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(fistIncrementProcessThread1of1ForFork0_i) = -2*fistIncrementProcessThread1of1ForFork0_i + 5 Supporting invariants [] [2025-04-26 18:38:12,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 18:38:12,973 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:38:13,016 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:13,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:38:13,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:38:13,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:38:13,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:38:13,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:38:13,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:38:13,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:38:13,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:38:13,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:38:13,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:38:13,069 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 18:38:13,092 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 18:38:13,097 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 49 states, 47 states have (on average 1.3191489361702127) internal successors, (in total 62), 48 states have internal predecessors, (62), 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 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 18:38:13,161 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 49 states, 47 states have (on average 1.3191489361702127) internal successors, (in total 62), 48 states have internal predecessors, (62), 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 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 95 states and 126 transitions. Complement of second has 6 states. [2025-04-26 18:38:13,162 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 18:38:13,165 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 18:38:13,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2025-04-26 18:38:13,170 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 18:38:13,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:38:13,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2025-04-26 18:38:13,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:38:13,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 8 letters. [2025-04-26 18:38:13,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:38:13,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 126 transitions. [2025-04-26 18:38:13,176 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2025-04-26 18:38:13,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 49 states and 68 transitions. [2025-04-26 18:38:13,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2025-04-26 18:38:13,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2025-04-26 18:38:13,181 INFO L74 IsDeterministic]: Start isDeterministic. Operand 49 states and 68 transitions. [2025-04-26 18:38:13,181 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:38:13,181 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-04-26 18:38:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 68 transitions. [2025-04-26 18:38:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2025-04-26 18:38:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.3695652173913044) internal successors, (in total 63), 45 states have internal predecessors, (63), 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 18:38:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2025-04-26 18:38:13,206 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 63 transitions. [2025-04-26 18:38:13,206 INFO L438 stractBuchiCegarLoop]: Abstraction has 46 states and 63 transitions. [2025-04-26 18:38:13,206 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:38:13,207 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 63 transitions. [2025-04-26 18:38:13,207 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2025-04-26 18:38:13,207 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:38:13,207 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:38:13,208 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 18:38:13,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:38:13,208 INFO L752 eck$LassoCheckResult]: Stem: "[44] $Ultimate##0-->L19: Formula: (= v_x_5 0) InVars {} OutVars{x=v_x_5} AuxVars[] AssignedVars[x]" "[68] L19-->$Ultimate##0: Formula: (= v_fistIncrementProcessThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_6, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_12, fistIncrementProcessThread1of1ForFork0_thidvar0=v_fistIncrementProcessThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx, fistIncrementProcessThread1of1ForFork0_i, fistIncrementProcessThread1of1ForFork0_thidvar0]" "[52] $Ultimate##0-->L34-1: Formula: (= 0 v_fistIncrementProcessThread1of1ForFork0_i_1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_1} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i]" "[54] L34-1-->L35: Formula: (< v_fistIncrementProcessThread1of1ForFork0_i_5 3) InVars {fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_5} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_5} AuxVars[] AssignedVars[]" "[71] L19-1-->$Ultimate##0: Formula: (= v_secondIncrementProcessThread1of1ForFork1_thidvar0_2 2) InVars {} OutVars{secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_6, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_12, secondIncrementProcessThread1of1ForFork1_thidvar0=v_secondIncrementProcessThread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_localx, secondIncrementProcessThread1of1ForFork1_i, secondIncrementProcessThread1of1ForFork1_thidvar0]" "[59] $Ultimate##0-->L50-1: Formula: (= v_secondIncrementProcessThread1of1ForFork1_i_1 0) InVars {} OutVars{secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_1} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_i]" [2025-04-26 18:38:13,208 INFO L754 eck$LassoCheckResult]: Loop: "[61] L50-1-->L51: Formula: (< v_secondIncrementProcessThread1of1ForFork1_i_5 3) InVars {secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_5} OutVars{secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_5} AuxVars[] AssignedVars[]" "[63] L51-->L52: Formula: (= v_secondIncrementProcessThread1of1ForFork1_localx_1 v_x_6) InVars {x=v_x_6} OutVars{x=v_x_6, secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_1} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_localx]" "[64] L52-->L53: Formula: (= v_x_7 (+ v_secondIncrementProcessThread1of1ForFork1_localx_3 1)) InVars {secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_3} OutVars{x=v_x_7, secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_3} AuxVars[] AssignedVars[x]" "[65] L53-->L50-1: Formula: (= (+ v_secondIncrementProcessThread1of1ForFork1_i_7 1) v_secondIncrementProcessThread1of1ForFork1_i_8) InVars {secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_7} OutVars{secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_8} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_i]" [2025-04-26 18:38:13,209 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:13,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2083378257, now seen corresponding path program 1 times [2025-04-26 18:38:13,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:38:13,209 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718210653] [2025-04-26 18:38:13,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:38:13,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:38:13,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:38:13,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:38:13,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:13,212 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:38:13,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:38:13,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:38:13,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:13,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:38:13,215 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash 2803364, now seen corresponding path program 1 times [2025-04-26 18:38:13,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:38:13,215 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515413728] [2025-04-26 18:38:13,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:38:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:38:13,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:38:13,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:38:13,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:13,218 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:38:13,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:38:13,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:38:13,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:13,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:38:13,221 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1300010158, now seen corresponding path program 1 times [2025-04-26 18:38:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:38:13,221 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653403906] [2025-04-26 18:38:13,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:38:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:38:13,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:38:13,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:38:13,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:13,225 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:38:13,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:38:13,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:38:13,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:38:13,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:38:13,253 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:38:13,253 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:38:13,253 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:38:13,253 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:38:13,253 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:38:13,253 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,253 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:38:13,253 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:38:13,253 INFO L132 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_petrified1_Iteration2_Loop [2025-04-26 18:38:13,253 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:38:13,253 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:38:13,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:13,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:13,286 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:38:13,286 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:38:13,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,288 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 18:38:13,289 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 18:38:13,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:38:13,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:13,314 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 18:38:13,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,316 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 18:38:13,317 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 18:38:13,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:38:13,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:13,391 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:38:13,391 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=-7, secondIncrementProcessThread1of1ForFork1_localx=-8} Honda state: {x=-7, secondIncrementProcessThread1of1ForFork1_localx=-8} Generalized eigenvectors: [{x=-5, secondIncrementProcessThread1of1ForFork1_localx=-5}, {x=0, secondIncrementProcessThread1of1ForFork1_localx=0}, {x=6, secondIncrementProcessThread1of1ForFork1_localx=6}] Lambdas: [1, 11, 1] Nus: [0, 0] [2025-04-26 18:38:13,397 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 18:38:13,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,399 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 18:38:13,400 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 18:38:13,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:38:13,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:13,416 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 18:38:13,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,418 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 18:38:13,419 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 18:38:13,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:38:13,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:38:13,441 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:38:13,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 18:38:13,445 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:38:13,445 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:38:13,445 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:38:13,445 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:38:13,445 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:38:13,445 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,445 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:38:13,445 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:38:13,445 INFO L132 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_petrified1_Iteration2_Loop [2025-04-26 18:38:13,445 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:38:13,445 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:38:13,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:13,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:38:13,482 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:38:13,482 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:38:13,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,484 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 18:38:13,486 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 18:38:13,487 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 18:38:13,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:38:13,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:38:13,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:38:13,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:38:13,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:38:13,503 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:38:13,503 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:38:13,505 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:38:13,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 18:38:13,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,515 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 18:38:13,515 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 18:38:13,518 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 18:38:13,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:38:13,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:38:13,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:38:13,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:38:13,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:38:13,528 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:38:13,528 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:38:13,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:38:13,532 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:38:13,532 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:38:13,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:38:13,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:38:13,534 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 18:38:13,535 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 18:38:13,537 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:38:13,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 18:38:13,542 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:38:13,542 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:38:13,542 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(secondIncrementProcessThread1of1ForFork1_i) = -2*secondIncrementProcessThread1of1ForFork1_i + 5 Supporting invariants [] [2025-04-26 18:38:13,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 18:38:13,548 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:38:13,561 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:38:13,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:38:13,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:38:13,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:38:13,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:38:13,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:38:13,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:38:13,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:38:13,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:38:13,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:38:13,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:38:13,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:38:13,596 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 18:38:13,597 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 18:38:13,597 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 63 transitions. cyclomatic complexity: 22 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (in total 10), 3 states have internal predecessors, (10), 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 18:38:13,618 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 63 transitions. cyclomatic complexity: 22. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (in total 10), 3 states have internal predecessors, (10), 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 76 states and 109 transitions. Complement of second has 4 states. [2025-04-26 18:38:13,619 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 18:38:13,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (in total 10), 3 states have internal predecessors, (10), 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 18:38:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2025-04-26 18:38:13,620 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 18:38:13,620 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:38:13,620 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 10 letters. Loop has 4 letters. [2025-04-26 18:38:13,620 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:38:13,620 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 6 letters. Loop has 8 letters. [2025-04-26 18:38:13,620 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:38:13,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 109 transitions. [2025-04-26 18:38:13,622 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:38:13,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 0 states and 0 transitions. [2025-04-26 18:38:13,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:38:13,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:38:13,622 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:38:13,622 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:38:13,622 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:38:13,622 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:38:13,622 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:38:13,622 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:38:13,622 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 18:38:13,622 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:38:13,622 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:38:13,631 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 18:38:13,632 INFO L201 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:38:13 BoogieIcfgContainer [2025-04-26 18:38:13,632 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:38:13,633 INFO L158 Benchmark]: Toolchain (without parser) took 1868.83ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 87.1MB in the beginning and 80.9MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:38:13,633 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.80ms. Allocated memory is still 159.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:38:13,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.87ms. Allocated memory is still 159.4MB. Free memory was 86.9MB in the beginning and 84.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:38:13,634 INFO L158 Benchmark]: Boogie Preprocessor took 19.45ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 83.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:38:13,634 INFO L158 Benchmark]: RCFGBuilder took 177.32ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 74.5MB in the end (delta: 8.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 18:38:13,634 INFO L158 Benchmark]: BuchiAutomizer took 1629.72ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.3MB in the beginning and 80.9MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:38:13,635 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 0.80ms. Allocated memory is still 159.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.87ms. Allocated memory is still 159.4MB. Free memory was 86.9MB in the beginning and 84.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 19.45ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 83.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 177.32ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 74.5MB in the end (delta: 8.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1629.72ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.3MB in the beginning and 80.9MB in the end (delta: -6.6MB). 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 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 32 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq200 hnf89 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 172, Number of transitions in reduction automaton: 62, Number of states in reduction automaton: 49, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 5 + i * -2 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 5 and consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 18:38:13,646 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...