/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/pp3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:57:05,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:57:05,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:57:05,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:57:05,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:57:05,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:57:05,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:57:05,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:57:05,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:57:05,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:57:05,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:57:05,102 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:57:05,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:57:05,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:57:05,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:57:05,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:05,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:57:05,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:57:05,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:57:05,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:57:05,105 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:57:05,105 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:57:05,105 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:57:05,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:57:05,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:57:05,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:57:05,323 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:57:05,323 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:57:05,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/pp3.c.bpl [2025-04-26 16:57:05,325 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/pp3.c.bpl' [2025-04-26 16:57:05,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:57:05,340 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:57:05,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:05,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:57:05,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:57:05,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,376 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:57:05,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:05,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:57:05,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:57:05,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:57:05,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,387 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:57:05,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:57:05,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:57:05,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:57:05,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:05,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:05,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:05,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:57:05,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:57:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:57:05,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:57:05,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:57:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:57:05,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:57:05,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:57:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:57:05,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:57:05,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:57:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:57:05,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:57:05,456 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:57:05,488 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:57:05,489 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:57:05,563 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:57:05,563 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:57:05,574 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:57:05,574 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:57:05,575 INFO L201 PluginConnector]: Adding new model pp3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:05 BoogieIcfgContainer [2025-04-26 16:57:05,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:57:05,576 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:57:05,576 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:57:05,580 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:57:05,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:05,581 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/2) ... [2025-04-26 16:57:05,583 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b864d81 and model type pp3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:57:05, skipping insertion in model container [2025-04-26 16:57:05,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:05,583 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pp3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:05" (2/2) ... [2025-04-26 16:57:05,584 INFO L376 chiAutomizerObserver]: Analyzing ICFG pp3.c.bpl [2025-04-26 16:57:05,632 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:57:05,673 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:57:05,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:57:05,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:05,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:05,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:57:05,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:57:05,749 INFO L116 PetriNetUnfolderBase]: 3/26 cut-off events. [2025-04-26 16:57:05,750 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:57:05,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 55 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2025-04-26 16:57:05,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:57:05,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2025-04-26 16:57:05,760 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 33 places, 26 transitions, 70 flow [2025-04-26 16:57:05,765 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:57:05,937 WARN L140 AmpleReduction]: Number of pruned transitions: 393 [2025-04-26 16:57:05,937 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:57:05,938 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 67 [2025-04-26 16:57:05,938 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:23 [2025-04-26 16:57:05,938 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:213 [2025-04-26 16:57:05,938 WARN L145 AmpleReduction]: Times succ was already a loop node:19 [2025-04-26 16:57:05,938 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:101 [2025-04-26 16:57:05,938 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:57:05,942 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 304 states, 303 states have (on average 1.646864686468647) internal successors, (in total 499), 303 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:05,949 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:57:05,949 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:57:05,949 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:57:05,949 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:57:05,949 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:57:05,949 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:57:05,949 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:57:05,949 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:57:05,952 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 304 states, 303 states have (on average 1.646864686468647) internal successors, (in total 499), 303 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:05,971 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 210 [2025-04-26 16:57:05,975 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:05,975 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:05,979 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:57:05,979 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:05,979 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:57:05,980 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 304 states, 303 states have (on average 1.646864686468647) internal successors, (in total 499), 303 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:05,991 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 210 [2025-04-26 16:57:05,992 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:05,992 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:05,992 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:57:05,992 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:06,000 INFO L752 eck$LassoCheckResult]: Stem: "[57] $Ultimate##0-->L14: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[81] L14-->L25: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:57:06,000 INFO L754 eck$LassoCheckResult]: Loop: "[62] L25-->L27: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[64] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[66] L28-->L25: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-04-26 16:57:06,004 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2809, now seen corresponding path program 1 times [2025-04-26 16:57:06,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,012 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907830705] [2025-04-26 16:57:06,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:06,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:06,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,094 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:06,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:06,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,112 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash 91423, now seen corresponding path program 1 times [2025-04-26 16:57:06,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,112 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819720093] [2025-04-26 16:57:06,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,121 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,125 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,125 INFO L85 PathProgramCache]: Analyzing trace with hash 83744551, now seen corresponding path program 1 times [2025-04-26 16:57:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,126 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474932601] [2025-04-26 16:57:06,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:57:06,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:57:06,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,130 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:57:06,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:57:06,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,187 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:06,187 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:06,187 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:06,187 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:06,187 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:06,187 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,188 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:06,188 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:06,188 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp3.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:57:06,188 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:06,188 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:06,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,251 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:06,252 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:06,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:57:06,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:06,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:06,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:57:06,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,344 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:57:06,344 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:57:06,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:06,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:57:06,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:06,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:57:06,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:57:06,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,452 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:06,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:06,457 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:06,458 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:06,458 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:06,458 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:06,458 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:06,458 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,458 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:06,458 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:06,458 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp3.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:57:06,458 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:06,458 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:06,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,500 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:06,503 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:06,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:57:06,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:06,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:06,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:06,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:06,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:06,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:06,525 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:06,526 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:06,528 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:57:06,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:57:06,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,536 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:57:06,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:06,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:06,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:06,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:06,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:06,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:06,550 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:06,551 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:06,554 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:06,556 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:57:06,556 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:57:06,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:57:06,562 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:06,565 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:57:06,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:06,566 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:06,567 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:06,567 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-04-26 16:57:06,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:57:06,575 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:06,626 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:06,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:06,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:06,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:06,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:06,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:06,653 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:06,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:57:06,711 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 16:57:06,713 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 304 states, 303 states have (on average 1.646864686468647) internal successors, (in total 499), 303 states have internal predecessors, (499), 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 4 states, 4 states have (on average 1.25) 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 16:57:06,797 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 304 states, 303 states have (on average 1.646864686468647) internal successors, (in total 499), 303 states have internal predecessors, (499), 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 4 states, 4 states have (on average 1.25) 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) Result 622 states and 1042 transitions. Complement of second has 6 states. [2025-04-26 16:57:06,798 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:57:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) 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 16:57:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2025-04-26 16:57:06,805 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 2 letters. Loop has 3 letters. [2025-04-26 16:57:06,805 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:06,805 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:57:06,805 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:06,805 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 2 letters. Loop has 6 letters. [2025-04-26 16:57:06,806 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:06,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 622 states and 1042 transitions. [2025-04-26 16:57:06,815 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 81 [2025-04-26 16:57:06,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 622 states to 316 states and 515 transitions. [2025-04-26 16:57:06,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 157 [2025-04-26 16:57:06,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 203 [2025-04-26 16:57:06,825 INFO L74 IsDeterministic]: Start isDeterministic. Operand 316 states and 515 transitions. [2025-04-26 16:57:06,826 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:57:06,826 INFO L218 hiAutomatonCegarLoop]: Abstraction has 316 states and 515 transitions. [2025-04-26 16:57:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 515 transitions. [2025-04-26 16:57:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 293. [2025-04-26 16:57:06,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 293 states have (on average 1.6791808873720135) internal successors, (in total 492), 292 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 492 transitions. [2025-04-26 16:57:06,854 INFO L240 hiAutomatonCegarLoop]: Abstraction has 293 states and 492 transitions. [2025-04-26 16:57:06,854 INFO L438 stractBuchiCegarLoop]: Abstraction has 293 states and 492 transitions. [2025-04-26 16:57:06,854 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:57:06,854 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 492 transitions. [2025-04-26 16:57:06,856 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 81 [2025-04-26 16:57:06,856 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:06,856 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:06,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:57:06,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:06,857 INFO L752 eck$LassoCheckResult]: Stem: "[57] $Ultimate##0-->L14: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[81] L14-->L25: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[61] L25-->L30: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[63] L30-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[65] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[84] L14-1-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:57:06,857 INFO L754 eck$LassoCheckResult]: Loop: "[68] L36-->L38: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[70] L38-->L39: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[72] L39-->L36: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-04-26 16:57:06,857 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1698916914, now seen corresponding path program 1 times [2025-04-26 16:57:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,857 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260679743] [2025-04-26 16:57:06,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:57:06,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:57:06,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,862 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:57:06,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:57:06,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,869 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash 97381, now seen corresponding path program 1 times [2025-04-26 16:57:06,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,869 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378965024] [2025-04-26 16:57:06,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,876 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,880 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash -539101320, now seen corresponding path program 1 times [2025-04-26 16:57:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,881 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163837506] [2025-04-26 16:57:06,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:57:06,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:57:06,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,887 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:57:06,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:57:06,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,909 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:06,909 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:06,909 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:06,909 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:06,909 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:06,909 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,909 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:06,909 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:06,909 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp3.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:57:06,909 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:06,909 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:06,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,936 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:06,936 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:06,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:57:06,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:06,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:57:06,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,960 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:06,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:57:06,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,995 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:57:06,995 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:57:07,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:57:07,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,003 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:57:07,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:07,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:57:07,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,022 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:57:07,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:07,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,088 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:07,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:57:07,093 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:07,093 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:07,093 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:07,093 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:07,093 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:07,093 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,093 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:07,093 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:07,093 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp3.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:57:07,093 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:07,093 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:07,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,131 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:07,131 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:07,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,133 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:57:07,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:07,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:07,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:07,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:07,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:07,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:07,146 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:07,147 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:07,148 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:57:07,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:57:07,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,156 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:57:07,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:07,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:07,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:07,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:07,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:07,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:07,170 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:07,170 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:07,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:07,174 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:57:07,174 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:57:07,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:57:07,179 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:07,181 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:57:07,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 16:57:07,183 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:07,183 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:07,183 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-04-26 16:57:07,189 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 16:57:07,190 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:07,201 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:57:07,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:57:07,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:07,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:07,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:07,219 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:07,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:57:07,244 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 16:57:07,244 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 293 states and 492 transitions. cyclomatic complexity: 232 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:07,284 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 293 states and 492 transitions. cyclomatic complexity: 232. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 655 states and 1098 transitions. Complement of second has 6 states. [2025-04-26 16:57:07,285 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:57:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2025-04-26 16:57:07,286 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:57:07,287 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,287 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:57:07,287 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,287 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 6 letters. Loop has 6 letters. [2025-04-26 16:57:07,287 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 655 states and 1098 transitions. [2025-04-26 16:57:07,292 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-04-26 16:57:07,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 655 states to 325 states and 542 transitions. [2025-04-26 16:57:07,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 127 [2025-04-26 16:57:07,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2025-04-26 16:57:07,295 INFO L74 IsDeterministic]: Start isDeterministic. Operand 325 states and 542 transitions. [2025-04-26 16:57:07,295 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:57:07,295 INFO L218 hiAutomatonCegarLoop]: Abstraction has 325 states and 542 transitions. [2025-04-26 16:57:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 542 transitions. [2025-04-26 16:57:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 305. [2025-04-26 16:57:07,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.6885245901639345) internal successors, (in total 515), 304 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 515 transitions. [2025-04-26 16:57:07,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 515 transitions. [2025-04-26 16:57:07,308 INFO L438 stractBuchiCegarLoop]: Abstraction has 305 states and 515 transitions. [2025-04-26 16:57:07,308 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:57:07,308 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 515 transitions. [2025-04-26 16:57:07,311 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-04-26 16:57:07,311 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:07,311 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:07,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:57:07,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:07,312 INFO L752 eck$LassoCheckResult]: Stem: "[57] $Ultimate##0-->L14: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[81] L14-->L25: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[61] L25-->L30: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[63] L30-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[65] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[84] L14-1-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[67] L36-->L41: Formula: (<= v_z2_2 v_x2_4) InVars {z2=v_z2_2, x2=v_x2_4} OutVars{z2=v_z2_2, x2=v_x2_4} AuxVars[] AssignedVars[]" "[69] L41-->thread2FINAL: Formula: (= (+ v_f_4 1) v_f_3) InVars {f=v_f_4} OutVars{f=v_f_3} AuxVars[] AssignedVars[f]" "[71] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[87] L15-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-04-26 16:57:07,313 INFO L754 eck$LassoCheckResult]: Loop: "[74] L47-->L49: Formula: (< v_y1_1 v_z1_3) InVars {y1=v_y1_1, z1=v_z1_3} OutVars{y1=v_y1_1, z1=v_z1_3} AuxVars[] AssignedVars[]" "[76] L49-->L50: Formula: (= v_y1_2 (+ v_y1_3 1)) InVars {y1=v_y1_3} OutVars{y1=v_y1_2} AuxVars[] AssignedVars[y1]" "[78] L50-->L47: Formula: (= v_c_5 (+ v_c_6 1)) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-04-26 16:57:07,313 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash 467697568, now seen corresponding path program 1 times [2025-04-26 16:57:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:07,313 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312169436] [2025-04-26 16:57:07,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:07,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:07,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:57:07,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:57:07,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,319 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:07,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:57:07,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:57:07,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:07,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,330 INFO L85 PathProgramCache]: Analyzing trace with hash 103339, now seen corresponding path program 1 times [2025-04-26 16:57:07,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:07,330 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68491849] [2025-04-26 16:57:07,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:07,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:07,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,337 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:07,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:07,342 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash 304413612, now seen corresponding path program 1 times [2025-04-26 16:57:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:07,342 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235396656] [2025-04-26 16:57:07,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:07,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:07,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:57:07,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:57:07,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,351 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:07,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:57:07,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:57:07,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:07,383 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:07,383 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:07,383 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:07,383 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:07,383 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:07,383 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,383 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:07,383 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:07,383 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp3.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:57:07,383 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:07,383 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:07,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,416 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:07,416 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:07,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,418 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:57:07,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:07,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:07,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,443 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:57:07,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:07,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,512 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:07,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:07,516 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:07,516 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:07,516 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:07,516 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:07,516 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:07,516 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,516 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:07,516 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:07,516 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp3.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:57:07,517 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:07,517 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:07,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,553 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:07,553 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:07,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,555 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:57:07,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:07,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:07,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:07,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:07,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:07,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:07,567 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:07,567 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:07,571 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:07,573 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:57:07,573 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:57:07,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,576 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:57:07,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:57:07,578 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:07,580 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:57:07,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:07,581 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:07,581 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:07,581 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, z1) = -1*y1 + 1*z1 Supporting invariants [] [2025-04-26 16:57:07,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 16:57:07,588 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:07,601 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:57:07,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:57:07,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:07,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:07,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:07,622 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:07,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:57:07,646 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 16:57:07,647 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 305 states and 515 transitions. cyclomatic complexity: 235 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (in total 13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:07,684 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 305 states and 515 transitions. cyclomatic complexity: 235. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (in total 13), 4 states have internal predecessors, (13), 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 659 states and 1095 transitions. Complement of second has 6 states. [2025-04-26 16:57:07,684 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:57:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (in total 13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2025-04-26 16:57:07,685 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 10 letters. Loop has 3 letters. [2025-04-26 16:57:07,685 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,685 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 13 letters. Loop has 3 letters. [2025-04-26 16:57:07,685 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,685 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 10 letters. Loop has 6 letters. [2025-04-26 16:57:07,685 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 659 states and 1095 transitions. [2025-04-26 16:57:07,689 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:57:07,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 659 states to 0 states and 0 transitions. [2025-04-26 16:57:07,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:57:07,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:57:07,689 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:57:07,689 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:57:07,689 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:57:07,689 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:57:07,689 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:57:07,689 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:57:07,689 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:57:07,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:57:07,690 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:57:07,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 16:57:07,701 INFO L201 PluginConnector]: Adding new model pp3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:57:07 BoogieIcfgContainer [2025-04-26 16:57:07,701 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:57:07,701 INFO L158 Benchmark]: Toolchain (without parser) took 2361.25ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 36.2MB in the end (delta: 47.2MB). Peak memory consumption was 52.1MB. Max. memory is 8.0GB. [2025-04-26 16:57:07,701 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.31ms. Allocated memory is still 155.2MB. Free memory was 83.3MB in the beginning and 81.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,702 INFO L158 Benchmark]: Boogie Preprocessor took 20.85ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 80.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,702 INFO L158 Benchmark]: RCFGBuilder took 174.71ms. Allocated memory is still 155.2MB. Free memory was 80.4MB in the beginning and 71.2MB in the end (delta: 9.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:57:07,702 INFO L158 Benchmark]: BuchiAutomizer took 2125.04ms. Allocated memory is still 155.2MB. Free memory was 71.1MB in the beginning and 36.2MB in the end (delta: 34.9MB). Peak memory consumption was 39.5MB. Max. memory is 8.0GB. [2025-04-26 16:57:07,703 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 0.15ms. Allocated memory is still 155.2MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.31ms. Allocated memory is still 155.2MB. Free memory was 83.3MB in the beginning and 81.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 20.85ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 80.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 174.71ms. Allocated memory is still 155.2MB. Free memory was 80.4MB in the beginning and 71.2MB in the end (delta: 9.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2125.04ms. Allocated memory is still 155.2MB. Free memory was 71.1MB in the beginning and 36.2MB in the end (delta: 34.9MB). Peak memory consumption was 39.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 43 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 93 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 269, Number of transitions in reduction automaton: 499, Number of states in reduction automaton: 304, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z1 and consists of 4 locations. One deterministic module has affine ranking function z2 + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * y1 + z1 and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:57:07,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...