/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/multi.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:56:45,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:56:45,683 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:56:45,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:56:45,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:56:45,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:56:45,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:56:45,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:56:45,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:56:45,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:56:45,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:56:45,708 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:56:45,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:56:45,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:56:45,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:56:45,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:56:45,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:56:45,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:56:45,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:56:45,710 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:56:45,710 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:56:45,710 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:56:45,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:56:45,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:56:45,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:56:45,940 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:56:45,941 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:56:45,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/multi.c.bpl [2025-04-26 16:56:45,942 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/multi.c.bpl' [2025-04-26 16:56:45,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:56:45,966 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:56:45,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:56:45,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:56:45,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:56:45,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:45,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:45,995 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:56:45,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:56:45,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:56:45,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:56:45,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:56:46,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,009 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:56:46,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:56:46,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:56:46,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:56:46,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/1) ... [2025-04-26 16:56:46,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:56:46,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:46,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:46,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:56:46,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:56:46,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:56:46,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:56:46,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:56:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:56:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:56:46,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:56:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:56:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:56:46,080 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:56:46,123 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:56:46,125 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:56:46,246 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:56:46,246 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:56:46,256 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:56:46,257 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:56:46,259 INFO L201 PluginConnector]: Adding new model multi.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:56:46 BoogieIcfgContainer [2025-04-26 16:56:46,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:56:46,260 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:56:46,260 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:56:46,265 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:56:46,265 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:56:46,265 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multi.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:56:45" (1/2) ... [2025-04-26 16:56:46,267 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d47e7b4 and model type multi.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:56:46, skipping insertion in model container [2025-04-26 16:56:46,267 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:56:46,267 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multi.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:56:46" (2/2) ... [2025-04-26 16:56:46,268 INFO L376 chiAutomizerObserver]: Analyzing ICFG multi.c.bpl [2025-04-26 16:56:46,330 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:56:46,363 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:56:46,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:56:46,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:46,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:46,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:56:46,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 48 transitions, 110 flow [2025-04-26 16:56:46,432 INFO L116 PetriNetUnfolderBase]: 11/44 cut-off events. [2025-04-26 16:56:46,433 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:56:46,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 44 events. 11/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 113 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 3 conditions per place. [2025-04-26 16:56:46,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 48 transitions, 110 flow [2025-04-26 16:56:46,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 44 transitions, 100 flow [2025-04-26 16:56:46,442 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 40 places, 44 transitions, 100 flow [2025-04-26 16:56:46,446 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:56:46,529 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 309#[L44, L30, L86-1]true [2025-04-26 16:56:46,529 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 381#[L48, L30, L86-1]true [2025-04-26 16:56:46,579 WARN L140 AmpleReduction]: Number of pruned transitions: 130 [2025-04-26 16:56:46,579 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 2 [2025-04-26 16:56:46,579 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 49 [2025-04-26 16:56:46,580 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:45 [2025-04-26 16:56:46,580 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:100 [2025-04-26 16:56:46,580 WARN L145 AmpleReduction]: Times succ was already a loop node:67 [2025-04-26 16:56:46,580 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:62 [2025-04-26 16:56:46,580 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:56:46,582 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 193 states, 192 states have (on average 1.8229166666666667) internal successors, (in total 350), 192 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:46,587 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:56:46,588 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:56:46,588 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:56:46,588 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:56:46,588 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:56:46,588 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:56:46,588 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:56:46,588 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:56:46,590 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 193 states, 192 states have (on average 1.8229166666666667) internal successors, (in total 350), 192 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:46,603 INFO L131 ngComponentsAnalysis]: Automaton has 27 accepting balls. 178 [2025-04-26 16:56:46,603 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:46,603 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:46,606 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:56:46,606 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:46,606 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:56:46,607 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 193 states, 192 states have (on average 1.8229166666666667) internal successors, (in total 350), 192 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:46,612 INFO L131 ngComponentsAnalysis]: Automaton has 27 accepting balls. 178 [2025-04-26 16:56:46,612 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:46,612 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:46,613 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:56:46,613 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:46,617 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:56:46,617 INFO L754 eck$LassoCheckResult]: Loop: "[131] L38-->L42-2: Formula: (< v_x1_1 0) InVars {x1=v_x1_1} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[]" "[134] L42-2-->L51: Formula: (<= 0 v_z_6) InVars {z=v_z_6} OutVars{z=v_z_6} AuxVars[] AssignedVars[]" "[139] L51-->L38: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-04-26 16:56:46,620 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:46,620 INFO L85 PathProgramCache]: Analyzing trace with hash 4851852, now seen corresponding path program 1 times [2025-04-26 16:56:46,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:46,625 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516456568] [2025-04-26 16:56:46,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:46,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:46,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:46,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:46,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:46,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:46,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:46,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:46,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:46,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:46,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:46,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:46,723 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash 159975, now seen corresponding path program 1 times [2025-04-26 16:56:46,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:46,723 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872223995] [2025-04-26 16:56:46,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:46,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:46,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:46,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:46,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:46,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:46,734 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:46,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:46,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:46,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:46,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:46,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:46,742 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1487234948, now seen corresponding path program 1 times [2025-04-26 16:56:46,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:46,742 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301244] [2025-04-26 16:56:46,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:46,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:46,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:56:46,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:56:46,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:46,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:46,750 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:46,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:56:46,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:56:46,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:46,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:46,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:46,833 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:46,833 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:46,834 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:46,834 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:46,834 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:46,834 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:46,834 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:46,834 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:46,834 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:56:46,834 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:46,834 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:46,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:46,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:46,940 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:46,941 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:46,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:46,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:46,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:46,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:56:46,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:46,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:46,969 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:46,970 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {z=0} Honda state: {z=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:46,976 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 16:56:46,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:46,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:46,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:46,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:56:46,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:46,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:47,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:47,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:56:47,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:47,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:47,034 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:47,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:47,039 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:47,040 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:47,040 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:47,040 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:47,040 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:47,040 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,040 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:47,040 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:47,040 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:56:47,040 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:47,040 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:47,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:47,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:47,078 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:47,082 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:47,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:56:47,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:47,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:47,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:56:47,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:47,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:47,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:47,105 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:56:47,105 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:56:47,107 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:47,113 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 16:56:47,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,116 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:56:47,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:47,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:47,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:56:47,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:47,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:47,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:47,130 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:56:47,130 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:56:47,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:47,138 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:56:47,138 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:56:47,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:56:47,162 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:47,165 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:56:47,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:47,165 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:56:47,165 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:47,166 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1) = -1*x1 Supporting invariants [] [2025-04-26 16:56:47,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:56:47,174 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:56:47,198 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:56:47,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:56:47,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:47,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:56:47,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:47,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:47,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:47,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:47,227 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:56:47,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:47,270 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:56:47,271 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 193 states, 192 states have (on average 1.8229166666666667) internal successors, (in total 350), 192 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,340 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 193 states, 192 states have (on average 1.8229166666666667) internal successors, (in total 350), 192 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 397 states and 750 transitions. Complement of second has 6 states. [2025-04-26 16:56:47,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2025-04-26 16:56:47,351 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 67 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:56:47,351 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:47,351 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 67 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 16:56:47,351 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:47,351 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 67 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 16:56:47,351 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:47,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 750 transitions. [2025-04-26 16:56:47,357 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 156 [2025-04-26 16:56:47,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 265 states and 498 transitions. [2025-04-26 16:56:47,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2025-04-26 16:56:47,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2025-04-26 16:56:47,364 INFO L74 IsDeterministic]: Start isDeterministic. Operand 265 states and 498 transitions. [2025-04-26 16:56:47,364 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:47,364 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 498 transitions. [2025-04-26 16:56:47,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 498 transitions. [2025-04-26 16:56:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 243. [2025-04-26 16:56:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 243 states have (on average 1.868312757201646) internal successors, (in total 454), 242 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 454 transitions. [2025-04-26 16:56:47,404 INFO L240 hiAutomatonCegarLoop]: Abstraction has 243 states and 454 transitions. [2025-04-26 16:56:47,404 INFO L438 stractBuchiCegarLoop]: Abstraction has 243 states and 454 transitions. [2025-04-26 16:56:47,404 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:56:47,404 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 454 transitions. [2025-04-26 16:56:47,407 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 156 [2025-04-26 16:56:47,407 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:47,407 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:47,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:56:47,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:56:47,408 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[130] L38-->L53-1: Formula: (<= 0 v_x1_4) InVars {x1=v_x1_4} OutVars{x1=v_x1_4} AuxVars[] AssignedVars[]" [2025-04-26 16:56:47,408 INFO L754 eck$LassoCheckResult]: Loop: "[133] L53-1-->L55: Formula: (< v_y1_1 0) InVars {y1=v_y1_1} OutVars{y1=v_y1_1} AuxVars[] AssignedVars[]" "[138] L55-->L53-1: Formula: (= v_y1_2 (+ v_y1_3 1)) InVars {y1=v_y1_3} OutVars{y1=v_y1_2} AuxVars[] AssignedVars[y1]" [2025-04-26 16:56:47,409 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash 150407542, now seen corresponding path program 1 times [2025-04-26 16:56:47,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,410 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387519199] [2025-04-26 16:56:47,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,421 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,437 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash 5222, now seen corresponding path program 1 times [2025-04-26 16:56:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,437 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805659205] [2025-04-26 16:56:47,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:47,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:47,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,442 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:47,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:47,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,447 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1487235941, now seen corresponding path program 1 times [2025-04-26 16:56:47,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,447 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583878143] [2025-04-26 16:56:47,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:56:47,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:56:47,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,459 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:56:47,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:56:47,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,483 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:47,483 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:47,483 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:47,484 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:47,484 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:47,484 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,484 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:47,484 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:47,484 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:56:47,484 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:47,484 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:47,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:47,508 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:47,508 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:47,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,510 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:56:47,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:47,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:47,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:56:47,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,531 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:56:47,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:47,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:47,557 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:47,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:47,561 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:47,561 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:47,561 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:47,561 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:47,561 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:47,561 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,561 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:47,561 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:47,561 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:56:47,561 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:47,561 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:47,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:47,584 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:47,584 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:47,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,587 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:56:47,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:47,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:47,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:56:47,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:47,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:47,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:47,601 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:56:47,601 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:56:47,605 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:47,608 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:56:47,608 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:47,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:47,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:47,611 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:47,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:56:47,613 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:47,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:47,618 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:56:47,618 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:47,618 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1) = -1*y1 Supporting invariants [] [2025-04-26 16:56:47,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:56:47,629 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:56:47,646 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:47,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:56:47,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:47,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:47,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:47,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:47,671 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:56:47,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:47,686 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:56:47,686 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 243 states and 454 transitions. cyclomatic complexity: 246 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,732 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 243 states and 454 transitions. cyclomatic complexity: 246. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 392 states and 768 transitions. Complement of second has 6 states. [2025-04-26 16:56:47,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:47,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2025-04-26 16:56:47,734 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:56:47,734 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:47,734 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:56:47,735 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:47,735 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:56:47,735 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:47,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 392 states and 768 transitions. [2025-04-26 16:56:47,739 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 128 [2025-04-26 16:56:47,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 392 states to 288 states and 552 transitions. [2025-04-26 16:56:47,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 153 [2025-04-26 16:56:47,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2025-04-26 16:56:47,742 INFO L74 IsDeterministic]: Start isDeterministic. Operand 288 states and 552 transitions. [2025-04-26 16:56:47,742 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:47,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 288 states and 552 transitions. [2025-04-26 16:56:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 552 transitions. [2025-04-26 16:56:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 270. [2025-04-26 16:56:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 1.9148148148148147) internal successors, (in total 517), 269 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 517 transitions. [2025-04-26 16:56:47,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 270 states and 517 transitions. [2025-04-26 16:56:47,751 INFO L438 stractBuchiCegarLoop]: Abstraction has 270 states and 517 transitions. [2025-04-26 16:56:47,751 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:56:47,751 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 517 transitions. [2025-04-26 16:56:47,754 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 128 [2025-04-26 16:56:47,754 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:47,754 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:47,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:56:47,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:47,755 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[131] L38-->L42-2: Formula: (< v_x1_1 0) InVars {x1=v_x1_1} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[]" [2025-04-26 16:56:47,755 INFO L754 eck$LassoCheckResult]: Loop: "[135] L42-2-->L42: Formula: (< v_z_1 0) InVars {z=v_z_1} OutVars{z=v_z_1} AuxVars[] AssignedVars[]" "[140] L42-->L44: Formula: (< v_b_1 0) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[144] L44-->L42-2: Formula: (= (+ v_z_3 v_t_1) v_z_2) InVars {t=v_t_1, z=v_z_3} OutVars{t=v_t_1, z=v_z_2} AuxVars[] AssignedVars[z]" [2025-04-26 16:56:47,755 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,755 INFO L85 PathProgramCache]: Analyzing trace with hash 150407543, now seen corresponding path program 1 times [2025-04-26 16:56:47,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,756 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764896763] [2025-04-26 16:56:47,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,764 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,768 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,768 INFO L85 PathProgramCache]: Analyzing trace with hash 164010, now seen corresponding path program 1 times [2025-04-26 16:56:47,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,768 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435292699] [2025-04-26 16:56:47,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:47,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:47,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,771 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:47,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:47,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,775 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1140358004, now seen corresponding path program 1 times [2025-04-26 16:56:47,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,776 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032376592] [2025-04-26 16:56:47,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:56:47,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:56:47,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:47,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:56:47,835 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032376592] [2025-04-26 16:56:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032376592] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:56:47,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:56:47,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:56:47,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865349088] [2025-04-26 16:56:47,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:56:47,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:56:47,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:56:47,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:56:47,864 INFO L87 Difference]: Start difference. First operand 270 states and 517 transitions. cyclomatic complexity: 282 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:56:47,894 INFO L93 Difference]: Finished difference Result 472 states and 889 transitions. [2025-04-26 16:56:47,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 472 states and 889 transitions. [2025-04-26 16:56:47,897 INFO L131 ngComponentsAnalysis]: Automaton has 49 accepting balls. 221 [2025-04-26 16:56:47,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 472 states to 472 states and 889 transitions. [2025-04-26 16:56:47,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 277 [2025-04-26 16:56:47,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2025-04-26 16:56:47,901 INFO L74 IsDeterministic]: Start isDeterministic. Operand 472 states and 889 transitions. [2025-04-26 16:56:47,901 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:47,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 472 states and 889 transitions. [2025-04-26 16:56:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states and 889 transitions. [2025-04-26 16:56:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 407. [2025-04-26 16:56:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 407 states have (on average 1.882063882063882) internal successors, (in total 766), 406 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 766 transitions. [2025-04-26 16:56:47,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 407 states and 766 transitions. [2025-04-26 16:56:47,915 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:56:47,915 INFO L438 stractBuchiCegarLoop]: Abstraction has 407 states and 766 transitions. [2025-04-26 16:56:47,915 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:56:47,915 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 407 states and 766 transitions. [2025-04-26 16:56:47,917 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 185 [2025-04-26 16:56:47,917 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:47,917 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:47,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:56:47,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:47,917 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[131] L38-->L42-2: Formula: (< v_x1_1 0) InVars {x1=v_x1_1} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[]" [2025-04-26 16:56:47,918 INFO L754 eck$LassoCheckResult]: Loop: "[135] L42-2-->L42: Formula: (< v_z_1 0) InVars {z=v_z_1} OutVars{z=v_z_1} AuxVars[] AssignedVars[]" "[141] L42-->L48: Formula: (<= 0 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[145] L48-->L42-2: Formula: (= (+ v_z_4 v_t_2) v_z_5) InVars {t=v_t_2, z=v_z_5} OutVars{t=v_t_2, z=v_z_4} AuxVars[] AssignedVars[z]" [2025-04-26 16:56:47,918 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,918 INFO L85 PathProgramCache]: Analyzing trace with hash 150407543, now seen corresponding path program 2 times [2025-04-26 16:56:47,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,918 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049791449] [2025-04-26 16:56:47,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:56:47,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,920 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,924 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,924 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:56:47,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,924 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:47,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:47,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,928 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash 164042, now seen corresponding path program 1 times [2025-04-26 16:56:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,928 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916273303] [2025-04-26 16:56:47,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:47,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:47,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,930 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:47,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:47,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:47,933 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:47,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1140358036, now seen corresponding path program 1 times [2025-04-26 16:56:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:47,933 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947368217] [2025-04-26 16:56:47,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:47,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:56:47,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:56:47,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,942 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:47,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:56:47,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:56:47,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:47,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:47,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:48,048 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:48,048 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:48,048 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:48,048 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:48,048 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:48,048 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,048 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:48,048 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:48,049 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:56:48,049 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:48,049 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:48,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,145 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:48,146 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:48,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:56:48,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,149 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,168 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:48,168 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {a2=6, r2=6, b2=4} Honda state: {a2=6, r2=6, b2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:48,175 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 16:56:48,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:56:48,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,197 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:48,197 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:48,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:48,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,205 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:56:48,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,235 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 16:56:48,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,238 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:56:48,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:48,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,275 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:48,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:48,280 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:48,280 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:48,280 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:48,280 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:48,280 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:48,280 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,280 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:48,280 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:48,280 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:56:48,280 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:48,281 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:48,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,375 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:48,376 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:48,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,412 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 16:56:48,424 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 16:56:48,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:48,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:48,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:48,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:48,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:48,437 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:48,437 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:48,440 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:48,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 16:56:48,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,448 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 16:56:48,450 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 16:56:48,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:48,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:48,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:48,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:48,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:48,463 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:48,463 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:48,467 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:48,472 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:56:48,472 INFO L437 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:48,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,475 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 16:56:48,476 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 16:56:48,477 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:48,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:48,496 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:48,496 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:48,496 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z) = -1*z Supporting invariants [-1*t - 1 >= 0] [2025-04-26 16:56:48,501 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 16:56:48,506 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:48,523 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:48,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:48,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:48,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:48,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:48,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:48,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:48,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:48,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:48,563 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:48,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:48,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:48,585 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:48,586 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 407 states and 766 transitions. cyclomatic complexity: 421 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:48,676 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 407 states and 766 transitions. cyclomatic complexity: 421. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1423 states and 2664 transitions. Complement of second has 10 states. [2025-04-26 16:56:48,677 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:56:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-04-26 16:56:48,678 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 7 states and 160 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:56:48,678 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:48,678 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 7 states and 160 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:56:48,678 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:48,678 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 7 states and 160 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:56:48,678 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:48,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1423 states and 2664 transitions. [2025-04-26 16:56:48,685 INFO L131 ngComponentsAnalysis]: Automaton has 93 accepting balls. 425 [2025-04-26 16:56:48,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1423 states to 1029 states and 1919 transitions. [2025-04-26 16:56:48,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 527 [2025-04-26 16:56:48,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 537 [2025-04-26 16:56:48,691 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1029 states and 1919 transitions. [2025-04-26 16:56:48,691 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:48,691 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1029 states and 1919 transitions. [2025-04-26 16:56:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states and 1919 transitions. [2025-04-26 16:56:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 677. [2025-04-26 16:56:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 677 states have (on average 1.8803545051698671) internal successors, (in total 1273), 676 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1273 transitions. [2025-04-26 16:56:48,705 INFO L240 hiAutomatonCegarLoop]: Abstraction has 677 states and 1273 transitions. [2025-04-26 16:56:48,705 INFO L438 stractBuchiCegarLoop]: Abstraction has 677 states and 1273 transitions. [2025-04-26 16:56:48,705 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:56:48,705 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 677 states and 1273 transitions. [2025-04-26 16:56:48,707 INFO L131 ngComponentsAnalysis]: Automaton has 49 accepting balls. 221 [2025-04-26 16:56:48,707 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:48,707 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:48,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:56:48,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:48,708 INFO L752 eck$LassoCheckResult]: Stem: "[127] $Ultimate##0-->L22: Formula: (< v_b_5 0) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[108] L22-->L20-1: Formula: (= v_t_5 1) InVars {} OutVars{t=v_t_5} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[131] L38-->L42-2: Formula: (< v_x1_1 0) InVars {x1=v_x1_1} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[]" [2025-04-26 16:56:48,708 INFO L754 eck$LassoCheckResult]: Loop: "[135] L42-2-->L42: Formula: (< v_z_1 0) InVars {z=v_z_1} OutVars{z=v_z_1} AuxVars[] AssignedVars[]" "[140] L42-->L44: Formula: (< v_b_1 0) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[144] L44-->L42-2: Formula: (= (+ v_z_3 v_t_1) v_z_2) InVars {t=v_t_1, z=v_z_3} OutVars{t=v_t_1, z=v_z_2} AuxVars[] AssignedVars[z]" [2025-04-26 16:56:48,708 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:48,708 INFO L85 PathProgramCache]: Analyzing trace with hash 149245694, now seen corresponding path program 1 times [2025-04-26 16:56:48,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:48,708 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976590661] [2025-04-26 16:56:48,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:48,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:48,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:48,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:48,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:48,712 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:48,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:48,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:48,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:48,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:48,715 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash 164010, now seen corresponding path program 2 times [2025-04-26 16:56:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:48,715 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602146993] [2025-04-26 16:56:48,715 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:56:48,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:48,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:48,716 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:48,716 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:56:48,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:48,717 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:48,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:48,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:48,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:48,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:48,718 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:48,718 INFO L85 PathProgramCache]: Analyzing trace with hash 887452813, now seen corresponding path program 1 times [2025-04-26 16:56:48,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:48,719 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917041982] [2025-04-26 16:56:48,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:48,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:48,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:56:48,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:56:48,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:48,722 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:48,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:56:48,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:56:48,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:48,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:48,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:48,794 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:48,794 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:48,794 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:48,794 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:48,794 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:48,794 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,794 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:48,794 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:48,794 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration5_Lasso [2025-04-26 16:56:48,794 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:48,794 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:48,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:48,884 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:48,885 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:48,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,886 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 16:56:48,887 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 16:56:48,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,907 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:48,907 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {a1=3, r1=3, b1=2} Honda state: {a1=3, r1=3, b1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:48,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:56:48,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,915 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 16:56:48,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,936 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:48,936 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q1=0} Honda state: {q1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:48,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:56:48,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,943 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 16:56:48,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,963 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:48,963 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {a2=6, r2=6, b2=4} Honda state: {a2=6, r2=6, b2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:48,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:48,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,971 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 16:56:48,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:48,989 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:48,989 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q2=0} Honda state: {q2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:48,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:56:48,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:48,996 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:48,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 16:56:48,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:48,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,009 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:49,009 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:49,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-04-26 16:56:49,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,016 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 16:56:49,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,035 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:49,035 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=-1} Honda state: {b=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:49,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:56:49,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,042 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-04-26 16:56:49,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 16:56:49,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,063 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-04-26 16:56:49,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:49,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,117 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:49,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-04-26 16:56:49,122 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:49,122 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:49,122 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:49,122 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:49,122 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:49,122 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,122 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:49,122 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:49,122 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration5_Lasso [2025-04-26 16:56:49,122 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:49,122 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:49,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,148 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,200 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:49,200 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:49,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,202 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-04-26 16:56:49,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,215 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,215 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,218 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:49,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-04-26 16:56:49,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,226 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-04-26 16:56:49,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,242 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,242 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,245 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:49,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:49,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,253 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-04-26 16:56:49,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,267 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,267 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,271 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:49,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-04-26 16:56:49,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,289 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-04-26 16:56:49,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,305 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,305 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,307 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:49,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:49,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,315 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-04-26 16:56:49,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,329 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,329 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,332 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:49,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-04-26 16:56:49,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,340 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-04-26 16:56:49,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,354 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,354 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,357 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:49,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:49,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,365 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-04-26 16:56:49,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:49,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:49,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:49,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:49,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:49,380 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:49,380 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:49,386 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:49,390 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:56:49,390 INFO L437 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:49,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,392 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-04-26 16:56:49,394 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:49,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:49,410 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:49,410 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:49,411 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z) = -1*z Supporting invariants [1*t - 1 >= 0] [2025-04-26 16:56:49,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-04-26 16:56:49,419 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:49,438 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:49,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:56:49,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:56:49,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:49,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:49,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:49,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:49,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:49,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:49,465 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:49,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:49,483 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:49,483 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 677 states and 1273 transitions. cyclomatic complexity: 698 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:49,577 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 677 states and 1273 transitions. cyclomatic complexity: 698. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1850 states and 3471 transitions. Complement of second has 10 states. [2025-04-26 16:56:49,577 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:56:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions. [2025-04-26 16:56:49,580 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 7 states and 166 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:56:49,580 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:49,580 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 7 states and 166 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:56:49,580 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:49,580 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 7 states and 166 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:56:49,580 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:49,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1850 states and 3471 transitions. [2025-04-26 16:56:49,590 INFO L131 ngComponentsAnalysis]: Automaton has 93 accepting balls. 401 [2025-04-26 16:56:49,596 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1850 states to 1318 states and 2449 transitions. [2025-04-26 16:56:49,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 576 [2025-04-26 16:56:49,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 610 [2025-04-26 16:56:49,598 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1318 states and 2449 transitions. [2025-04-26 16:56:49,598 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:49,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1318 states and 2449 transitions. [2025-04-26 16:56:49,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states and 2449 transitions. [2025-04-26 16:56:49,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 880. [2025-04-26 16:56:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 880 states have (on average 1.9011363636363636) internal successors, (in total 1673), 879 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1673 transitions. [2025-04-26 16:56:49,614 INFO L240 hiAutomatonCegarLoop]: Abstraction has 880 states and 1673 transitions. [2025-04-26 16:56:49,614 INFO L438 stractBuchiCegarLoop]: Abstraction has 880 states and 1673 transitions. [2025-04-26 16:56:49,614 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 16:56:49,614 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 880 states and 1673 transitions. [2025-04-26 16:56:49,616 INFO L131 ngComponentsAnalysis]: Automaton has 48 accepting balls. 212 [2025-04-26 16:56:49,616 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:49,616 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:49,617 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:56:49,617 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:49,617 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[130] L38-->L53-1: Formula: (<= 0 v_x1_4) InVars {x1=v_x1_4} OutVars{x1=v_x1_4} AuxVars[] AssignedVars[]" "[132] L53-1-->L57-1: Formula: (<= 0 v_y1_4) InVars {y1=v_y1_4} OutVars{y1=v_y1_4} AuxVars[] AssignedVars[]" [2025-04-26 16:56:49,617 INFO L754 eck$LassoCheckResult]: Loop: "[137] L57-1-->L59: Formula: (<= v_b1_3 v_r1_4) InVars {r1=v_r1_4, b1=v_b1_3} OutVars{r1=v_r1_4, b1=v_b1_3} AuxVars[] AssignedVars[]" "[143] L59-->L60: Formula: (= (+ v_q1_2 1) v_q1_1) InVars {q1=v_q1_2} OutVars{q1=v_q1_1} AuxVars[] AssignedVars[q1]" "[146] L60-->L57-1: Formula: (= v_r1_2 (+ v_b1_1 v_r1_1)) InVars {r1=v_r1_2, b1=v_b1_1} OutVars{r1=v_r1_1, b1=v_b1_1} AuxVars[] AssignedVars[r1]" [2025-04-26 16:56:49,617 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash 367666638, now seen corresponding path program 1 times [2025-04-26 16:56:49,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:49,617 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493371864] [2025-04-26 16:56:49,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:49,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:49,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:49,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:49,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:49,621 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:49,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:49,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:49,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:49,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:49,624 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 166027, now seen corresponding path program 1 times [2025-04-26 16:56:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:49,624 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771875310] [2025-04-26 16:56:49,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:49,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:49,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:49,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:49,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:49,627 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:49,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:49,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:49,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:49,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:49,633 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 990344094, now seen corresponding path program 1 times [2025-04-26 16:56:49,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:49,633 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032471030] [2025-04-26 16:56:49,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:49,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:49,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:56:49,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:56:49,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:49,639 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:49,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:56:49,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:56:49,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:49,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:49,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:49,657 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:49,658 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:49,658 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:49,658 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:49,658 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:49,658 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,658 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:49,658 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:49,658 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration6_Loop [2025-04-26 16:56:49,658 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:49,658 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:49,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,677 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:49,678 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:49,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,679 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-04-26 16:56:49,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,699 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:49,699 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1=0, b1=0} Honda state: {r1=0, b1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:49,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-04-26 16:56:49,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,706 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-04-26 16:56:49,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:49,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,725 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-04-26 16:56:49,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:49,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,753 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:49,753 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q1=0} Honda state: {q1=0} Generalized eigenvectors: [{q1=-1}, {q1=4}, {q1=-2}] Lambdas: [5, 1, 1] Nus: [1, 0] [2025-04-26 16:56:49,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:49,823 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:49,823 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:49,823 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:49,823 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:49,823 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:49,823 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,823 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:49,823 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:49,823 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration6_Lasso [2025-04-26 16:56:49,823 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:49,823 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:49,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:49,908 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:49,908 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:49,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,912 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-04-26 16:56:49,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,930 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:49,930 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:49,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2025-04-26 16:56:49,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,937 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-04-26 16:56:49,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-04-26 16:56:49,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,956 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2025-04-26 16:56:49,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:49,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:49,980 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:49,980 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q1=0} Honda state: {q1=0} Generalized eigenvectors: [{q1=-1}, {q1=-1}, {q1=3}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:56:49,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2025-04-26 16:56:49,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:49,987 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:49,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2025-04-26 16:56:49,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:49,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,006 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:50,007 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q2=0} Honda state: {q2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:50,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,015 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2025-04-26 16:56:50,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:50,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,035 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:50,035 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r2=6, a2=6, b2=4} Honda state: {r2=6, a2=6, b2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:50,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2025-04-26 16:56:50,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,043 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2025-04-26 16:56:50,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:50,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,056 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:50,056 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:50,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2025-04-26 16:56:50,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,064 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2025-04-26 16:56:50,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:50,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,084 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:50,084 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {t=0} Honda state: {t=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:50,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2025-04-26 16:56:50,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,094 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2025-04-26 16:56:50,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:50,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2025-04-26 16:56:50,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,143 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2025-04-26 16:56:50,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:50,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,283 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:50,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2025-04-26 16:56:50,290 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:50,290 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:50,290 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:50,290 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:50,290 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:50,290 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,290 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:50,290 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:50,290 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration6_Lasso [2025-04-26 16:56:50,290 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:50,290 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:50,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,378 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:50,378 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:50,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,380 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2025-04-26 16:56:50,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,393 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,393 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,396 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:50,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,404 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2025-04-26 16:56:50,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,430 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,430 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,434 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:50,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,447 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2025-04-26 16:56:50,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,460 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,460 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,462 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:50,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2025-04-26 16:56:50,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,470 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2025-04-26 16:56:50,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,485 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,485 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,489 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:50,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,499 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2025-04-26 16:56:50,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,513 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,513 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,515 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:50,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,523 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2025-04-26 16:56:50,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,536 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,536 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,538 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:50,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2025-04-26 16:56:50,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,546 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2025-04-26 16:56:50,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,561 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:50,561 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:50,566 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:50,572 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:56:50,572 INFO L437 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:50,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,574 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2025-04-26 16:56:50,576 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:50,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2025-04-26 16:56:50,594 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2025-04-26 16:56:50,594 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:50,594 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(a1, r1, b1) = 1*a1 + 2*r1 - 2*b1 Supporting invariants [1*a1 - 2 >= 0, 1*b1 - 1 >= 0] [2025-04-26 16:56:50,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2025-04-26 16:56:50,612 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2025-04-26 16:56:50,637 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:50,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:50,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:50,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:50,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:56:50,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:50,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:50,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:50,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:50,678 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-26 16:56:50,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:50,703 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:50,704 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 880 states and 1673 transitions. cyclomatic complexity: 920 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 16:56:50,751 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 880 states and 1673 transitions. cyclomatic complexity: 920. 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 1198 states and 2325 transitions. Complement of second has 7 states. [2025-04-26 16:56:50,752 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:50,753 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 16:56:50,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2025-04-26 16:56:50,754 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 78 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:56:50,754 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:50,754 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 78 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:56:50,754 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:50,754 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 78 transitions. Stem has 6 letters. Loop has 6 letters. [2025-04-26 16:56:50,755 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:50,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1198 states and 2325 transitions. [2025-04-26 16:56:50,761 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 110 [2025-04-26 16:56:50,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1198 states to 904 states and 1733 transitions. [2025-04-26 16:56:50,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2025-04-26 16:56:50,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 266 [2025-04-26 16:56:50,766 INFO L74 IsDeterministic]: Start isDeterministic. Operand 904 states and 1733 transitions. [2025-04-26 16:56:50,766 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:50,766 INFO L218 hiAutomatonCegarLoop]: Abstraction has 904 states and 1733 transitions. [2025-04-26 16:56:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states and 1733 transitions. [2025-04-26 16:56:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 839. [2025-04-26 16:56:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 839 states have (on average 1.9106078665077473) internal successors, (in total 1603), 838 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1603 transitions. [2025-04-26 16:56:50,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 839 states and 1603 transitions. [2025-04-26 16:56:50,780 INFO L438 stractBuchiCegarLoop]: Abstraction has 839 states and 1603 transitions. [2025-04-26 16:56:50,780 INFO L340 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-04-26 16:56:50,780 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 839 states and 1603 transitions. [2025-04-26 16:56:50,783 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 110 [2025-04-26 16:56:50,783 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:50,783 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:50,783 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:56:50,783 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:50,784 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[131] L38-->L42-2: Formula: (< v_x1_1 0) InVars {x1=v_x1_1} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[]" "[169] L29-1-->L67: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:56:50,784 INFO L754 eck$LassoCheckResult]: Loop: "[148] L67-->L71-2: Formula: (< v_x2_1 0) InVars {x2=v_x2_1} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[]" "[151] L71-2-->L80: Formula: (<= 0 v_z_12) InVars {z=v_z_12} OutVars{z=v_z_12} AuxVars[] AssignedVars[]" "[156] L80-->L67: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-04-26 16:56:50,784 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:50,785 INFO L85 PathProgramCache]: Analyzing trace with hash 367666706, now seen corresponding path program 1 times [2025-04-26 16:56:50,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:50,785 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72067317] [2025-04-26 16:56:50,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:50,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:50,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:50,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:50,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:50,789 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:50,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:50,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:50,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:50,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:50,794 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash 176856, now seen corresponding path program 1 times [2025-04-26 16:56:50,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:50,794 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234258221] [2025-04-26 16:56:50,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:50,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:50,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:50,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:50,800 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:50,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:50,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:50,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:50,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:50,801 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash 992380711, now seen corresponding path program 1 times [2025-04-26 16:56:50,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:50,803 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663877251] [2025-04-26 16:56:50,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:50,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:56:50,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:56:50,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:50,811 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:50,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:56:50,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:56:50,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:50,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:50,845 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:50,845 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:50,845 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:50,845 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:50,845 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:50,845 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,845 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:50,845 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:50,845 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration7_Loop [2025-04-26 16:56:50,845 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:50,845 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:50,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,858 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:50,858 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:50,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,860 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2025-04-26 16:56:50,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:50,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2025-04-26 16:56:50,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,881 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2025-04-26 16:56:50,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:50,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:50,903 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:50,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2025-04-26 16:56:50,907 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:50,907 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:50,907 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:50,907 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:50,907 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:50,907 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,907 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:50,907 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:50,907 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration7_Loop [2025-04-26 16:56:50,907 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:50,907 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:50,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:50,924 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:50,924 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:50,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,926 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2025-04-26 16:56:50,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:50,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:50,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:56:50,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:50,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:50,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:50,937 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:56:50,937 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:56:50,939 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:50,941 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:56:50,941 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:50,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:50,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:50,943 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:50,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2025-04-26 16:56:50,944 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:50,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,947 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:56:50,947 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:50,947 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2) = -1*x2 Supporting invariants [] [2025-04-26 16:56:50,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:50,953 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:56:50,964 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:50,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:56:50,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:56:50,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:50,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:56:50,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:50,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:50,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:50,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:50,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:50,984 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:56:50,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:50,997 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:56:50,997 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 839 states and 1603 transitions. cyclomatic complexity: 869 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,022 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 839 states and 1603 transitions. cyclomatic complexity: 869. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1950 states and 3819 transitions. Complement of second has 6 states. [2025-04-26 16:56:51,022 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-04-26 16:56:51,023 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:56:51,023 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:51,023 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:56:51,023 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:51,023 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 6 letters. Loop has 6 letters. [2025-04-26 16:56:51,023 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:51,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1950 states and 3819 transitions. [2025-04-26 16:56:51,032 INFO L131 ngComponentsAnalysis]: Automaton has 22 accepting balls. 71 [2025-04-26 16:56:51,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1950 states to 1371 states and 2625 transitions. [2025-04-26 16:56:51,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 250 [2025-04-26 16:56:51,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 272 [2025-04-26 16:56:51,038 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1371 states and 2625 transitions. [2025-04-26 16:56:51,039 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:51,039 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1371 states and 2625 transitions. [2025-04-26 16:56:51,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states and 2625 transitions. [2025-04-26 16:56:51,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1308. [2025-04-26 16:56:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1308 states have (on average 1.926605504587156) internal successors, (in total 2520), 1307 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 2520 transitions. [2025-04-26 16:56:51,057 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1308 states and 2520 transitions. [2025-04-26 16:56:51,057 INFO L438 stractBuchiCegarLoop]: Abstraction has 1308 states and 2520 transitions. [2025-04-26 16:56:51,057 INFO L340 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-04-26 16:56:51,057 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1308 states and 2520 transitions. [2025-04-26 16:56:51,061 INFO L131 ngComponentsAnalysis]: Automaton has 22 accepting balls. 71 [2025-04-26 16:56:51,061 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:51,061 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:51,061 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:56:51,061 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:51,061 INFO L752 eck$LassoCheckResult]: Stem: "[127] $Ultimate##0-->L22: Formula: (< v_b_5 0) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[108] L22-->L20-1: Formula: (= v_t_5 1) InVars {} OutVars{t=v_t_5} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[131] L38-->L42-2: Formula: (< v_x1_1 0) InVars {x1=v_x1_1} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[]" "[169] L29-1-->L67: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[147] L67-->L82-1: Formula: (<= 0 v_x2_4) InVars {x2=v_x2_4} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[]" [2025-04-26 16:56:51,061 INFO L754 eck$LassoCheckResult]: Loop: "[135] L42-2-->L42: Formula: (< v_z_1 0) InVars {z=v_z_1} OutVars{z=v_z_1} AuxVars[] AssignedVars[]" "[141] L42-->L48: Formula: (<= 0 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[145] L48-->L42-2: Formula: (= (+ v_z_4 v_t_2) v_z_5) InVars {t=v_t_2, z=v_z_5} OutVars{t=v_t_2, z=v_z_4} AuxVars[] AssignedVars[z]" [2025-04-26 16:56:51,061 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1691196552, now seen corresponding path program 1 times [2025-04-26 16:56:51,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,062 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470157065] [2025-04-26 16:56:51,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:56:51,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:56:51,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,065 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:51,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:56:51,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:56:51,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:51,068 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash 164042, now seen corresponding path program 2 times [2025-04-26 16:56:51,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,068 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527143134] [2025-04-26 16:56:51,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:56:51,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,069 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:51,069 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:51,069 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:56:51,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,069 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:51,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:51,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:51,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:51,071 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1824734493, now seen corresponding path program 1 times [2025-04-26 16:56:51,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,071 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996933803] [2025-04-26 16:56:51,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:56:51,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:56:51,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:56:51,115 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996933803] [2025-04-26 16:56:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996933803] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:56:51,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:56:51,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:56:51,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726974197] [2025-04-26 16:56:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:56:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:56:51,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:56:51,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:56:51,131 INFO L87 Difference]: Start difference. First operand 1308 states and 2520 transitions. cyclomatic complexity: 1366 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (in total 10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:56:51,150 INFO L93 Difference]: Finished difference Result 1337 states and 2527 transitions. [2025-04-26 16:56:51,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1337 states and 2527 transitions. [2025-04-26 16:56:51,156 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 48 [2025-04-26 16:56:51,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1337 states to 1028 states and 1921 transitions. [2025-04-26 16:56:51,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2025-04-26 16:56:51,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2025-04-26 16:56:51,160 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1028 states and 1921 transitions. [2025-04-26 16:56:51,160 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:51,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1028 states and 1921 transitions. [2025-04-26 16:56:51,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states and 1921 transitions. [2025-04-26 16:56:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 852. [2025-04-26 16:56:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 852 states have (on average 1.8732394366197183) internal successors, (in total 1596), 851 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1596 transitions. [2025-04-26 16:56:51,173 INFO L240 hiAutomatonCegarLoop]: Abstraction has 852 states and 1596 transitions. [2025-04-26 16:56:51,173 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:56:51,175 INFO L438 stractBuchiCegarLoop]: Abstraction has 852 states and 1596 transitions. [2025-04-26 16:56:51,175 INFO L340 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2025-04-26 16:56:51,175 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 852 states and 1596 transitions. [2025-04-26 16:56:51,178 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 33 [2025-04-26 16:56:51,178 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:51,178 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:51,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:56:51,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:56:51,179 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[130] L38-->L53-1: Formula: (<= 0 v_x1_4) InVars {x1=v_x1_4} OutVars{x1=v_x1_4} AuxVars[] AssignedVars[]" "[132] L53-1-->L57-1: Formula: (<= 0 v_y1_4) InVars {y1=v_y1_4} OutVars{y1=v_y1_4} AuxVars[] AssignedVars[]" "[136] L57-1-->thread1FINAL: Formula: (< v_r1_3 v_b1_2) InVars {r1=v_r1_3, b1=v_b1_2} OutVars{r1=v_r1_3, b1=v_b1_2} AuxVars[] AssignedVars[]" "[142] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[169] L29-1-->L67: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[147] L67-->L82-1: Formula: (<= 0 v_x2_4) InVars {x2=v_x2_4} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[]" [2025-04-26 16:56:51,179 INFO L754 eck$LassoCheckResult]: Loop: "[150] L82-1-->L84: Formula: (< v_y2_1 0) InVars {y2=v_y2_1} OutVars{y2=v_y2_1} AuxVars[] AssignedVars[]" "[155] L84-->L82-1: Formula: (= v_y2_2 (+ v_y2_3 1)) InVars {y2=v_y2_3} OutVars{y2=v_y2_2} AuxVars[] AssignedVars[y2]" [2025-04-26 16:56:51,179 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,179 INFO L85 PathProgramCache]: Analyzing trace with hash 635865950, now seen corresponding path program 1 times [2025-04-26 16:56:51,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,179 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680684845] [2025-04-26 16:56:51,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:56:51,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:56:51,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:56:51,202 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680684845] [2025-04-26 16:56:51,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680684845] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:56:51,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:56:51,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:56:51,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140979588] [2025-04-26 16:56:51,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:56:51,202 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-04-26 16:56:51,203 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,203 INFO L85 PathProgramCache]: Analyzing trace with hash 5766, now seen corresponding path program 1 times [2025-04-26 16:56:51,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,203 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389839221] [2025-04-26 16:56:51,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:51,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:51,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,205 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:51,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:51,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:51,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:51,215 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:51,215 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:51,215 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:51,215 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:51,215 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:51,215 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,215 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:51,215 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:51,215 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration9_Loop [2025-04-26 16:56:51,215 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:51,215 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:51,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,227 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:51,227 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:51,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,229 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2025-04-26 16:56:51,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:51,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:51,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,252 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2025-04-26 16:56:51,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:51,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,276 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:51,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2025-04-26 16:56:51,280 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:51,280 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:51,280 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:51,280 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:51,280 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:51,280 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,280 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:51,280 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:51,280 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration9_Loop [2025-04-26 16:56:51,280 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:51,280 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:51,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,298 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:51,298 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:51,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,300 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2025-04-26 16:56:51,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:51,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:51,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:56:51,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:51,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:51,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:51,311 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:56:51,311 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:56:51,313 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:51,315 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:56:51,315 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:51,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,317 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2025-04-26 16:56:51,319 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:51,322 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:56:51,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:51,323 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:56:51,323 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:51,323 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y2) = -1*y2 Supporting invariants [] [2025-04-26 16:56:51,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2025-04-26 16:56:51,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:56:51,338 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:56:51,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:56:51,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:51,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:56:51,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:51,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:56:51,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:56:51,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:51,356 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:56:51,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:51,365 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:56:51,365 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 852 states and 1596 transitions. cyclomatic complexity: 843 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (in total 12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,384 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 852 states and 1596 transitions. cyclomatic complexity: 843. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (in total 12), 3 states have internal predecessors, (12), 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 1058 states and 2014 transitions. Complement of second has 6 states. [2025-04-26 16:56:51,384 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (in total 12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2025-04-26 16:56:51,385 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 87 transitions. Stem has 10 letters. Loop has 2 letters. [2025-04-26 16:56:51,385 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:51,385 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 87 transitions. Stem has 12 letters. Loop has 2 letters. [2025-04-26 16:56:51,385 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:51,385 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 87 transitions. Stem has 10 letters. Loop has 4 letters. [2025-04-26 16:56:51,385 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:51,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1058 states and 2014 transitions. [2025-04-26 16:56:51,389 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2025-04-26 16:56:51,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1058 states to 915 states and 1721 transitions. [2025-04-26 16:56:51,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2025-04-26 16:56:51,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2025-04-26 16:56:51,393 INFO L74 IsDeterministic]: Start isDeterministic. Operand 915 states and 1721 transitions. [2025-04-26 16:56:51,394 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:51,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 915 states and 1721 transitions. [2025-04-26 16:56:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states and 1721 transitions. [2025-04-26 16:56:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 906. [2025-04-26 16:56:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 906 states have (on average 1.8741721854304636) internal successors, (in total 1698), 905 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1698 transitions. [2025-04-26 16:56:51,407 INFO L240 hiAutomatonCegarLoop]: Abstraction has 906 states and 1698 transitions. [2025-04-26 16:56:51,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:56:51,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:56:51,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:56:51,407 INFO L87 Difference]: Start difference. First operand 906 states and 1698 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (in total 10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:56:51,421 INFO L93 Difference]: Finished difference Result 1109 states and 1942 transitions. [2025-04-26 16:56:51,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1109 states and 1942 transitions. [2025-04-26 16:56:51,425 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2025-04-26 16:56:51,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1109 states to 1092 states and 1917 transitions. [2025-04-26 16:56:51,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2025-04-26 16:56:51,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2025-04-26 16:56:51,429 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1092 states and 1917 transitions. [2025-04-26 16:56:51,429 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:51,429 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1092 states and 1917 transitions. [2025-04-26 16:56:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states and 1917 transitions. [2025-04-26 16:56:51,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 937. [2025-04-26 16:56:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 937 states have (on average 1.8175026680896478) internal successors, (in total 1703), 936 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1703 transitions. [2025-04-26 16:56:51,443 INFO L240 hiAutomatonCegarLoop]: Abstraction has 937 states and 1703 transitions. [2025-04-26 16:56:51,443 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:56:51,444 INFO L438 stractBuchiCegarLoop]: Abstraction has 937 states and 1703 transitions. [2025-04-26 16:56:51,444 INFO L340 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2025-04-26 16:56:51,444 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 937 states and 1703 transitions. [2025-04-26 16:56:51,446 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2025-04-26 16:56:51,446 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:51,447 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:51,447 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:56:51,447 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:51,447 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[130] L38-->L53-1: Formula: (<= 0 v_x1_4) InVars {x1=v_x1_4} OutVars{x1=v_x1_4} AuxVars[] AssignedVars[]" "[132] L53-1-->L57-1: Formula: (<= 0 v_y1_4) InVars {y1=v_y1_4} OutVars{y1=v_y1_4} AuxVars[] AssignedVars[]" "[137] L57-1-->L59: Formula: (<= v_b1_3 v_r1_4) InVars {r1=v_r1_4, b1=v_b1_3} OutVars{r1=v_r1_4, b1=v_b1_3} AuxVars[] AssignedVars[]" "[143] L59-->L60: Formula: (= (+ v_q1_2 1) v_q1_1) InVars {q1=v_q1_2} OutVars{q1=v_q1_1} AuxVars[] AssignedVars[q1]" "[169] L29-1-->L67: 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]" "[146] L60-->L57-1: Formula: (= v_r1_2 (+ v_b1_1 v_r1_1)) InVars {r1=v_r1_2, b1=v_b1_1} OutVars{r1=v_r1_1, b1=v_b1_1} AuxVars[] AssignedVars[r1]" "[136] L57-1-->thread1FINAL: Formula: (< v_r1_3 v_b1_2) InVars {r1=v_r1_3, b1=v_b1_2} OutVars{r1=v_r1_3, b1=v_b1_2} AuxVars[] AssignedVars[]" "[148] L67-->L71-2: Formula: (< v_x2_1 0) InVars {x2=v_x2_1} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[]" [2025-04-26 16:56:51,447 INFO L754 eck$LassoCheckResult]: Loop: "[152] L71-2-->L71: Formula: (< v_z_7 0) InVars {z=v_z_7} OutVars{z=v_z_7} AuxVars[] AssignedVars[]" "[158] L71-->L77: Formula: (<= 0 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[162] L77-->L71-2: Formula: (= v_z_11 (+ v_z_10 v_t_4)) InVars {t=v_t_4, z=v_z_11} OutVars{t=v_t_4, z=v_z_10} AuxVars[] AssignedVars[z]" [2025-04-26 16:56:51,447 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1211377993, now seen corresponding path program 1 times [2025-04-26 16:56:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,448 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899814334] [2025-04-26 16:56:51,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:56:51,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:56:51,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,452 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:51,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:56:51,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:56:51,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:51,456 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash 180923, now seen corresponding path program 1 times [2025-04-26 16:56:51,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,456 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124842301] [2025-04-26 16:56:51,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:51,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:51,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,458 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:51,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:51,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:51,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:51,460 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:51,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1846719603, now seen corresponding path program 1 times [2025-04-26 16:56:51,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:51,460 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457874576] [2025-04-26 16:56:51,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:51,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:51,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 16:56:51,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 16:56:51,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,467 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:51,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 16:56:51,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 16:56:51,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:51,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:51,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:51,612 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:51,613 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:51,613 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:51,613 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:51,613 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:51,613 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,613 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:51,613 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:51,613 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration10_Lasso [2025-04-26 16:56:51,613 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:51,613 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:51,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,732 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:51,732 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:51,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,736 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2025-04-26 16:56:51,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:51,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,748 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:51,748 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:51,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2025-04-26 16:56:51,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,755 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2025-04-26 16:56:51,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:51,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,774 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:51,774 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:51,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2025-04-26 16:56:51,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,781 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2025-04-26 16:56:51,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:51,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,799 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:51,799 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q2=0} Honda state: {q2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:51,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2025-04-26 16:56:51,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,807 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2025-04-26 16:56:51,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:51,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,827 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:51,827 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r2=6, a2=6, b2=4} Honda state: {r2=6, a2=6, b2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:51,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2025-04-26 16:56:51,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,834 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2025-04-26 16:56:51,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:51,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2025-04-26 16:56:51,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,855 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2025-04-26 16:56:51,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:51,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:51,892 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:51,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2025-04-26 16:56:51,897 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:51,897 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:51,897 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:51,897 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:51,897 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:51,897 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,897 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:51,897 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:51,897 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration10_Lasso [2025-04-26 16:56:51,897 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:51,897 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:51,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:51,994 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:51,994 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:51,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:51,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:51,996 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:51,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2025-04-26 16:56:51,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:52,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:52,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:52,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:52,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:52,008 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:52,008 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:52,010 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:52,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2025-04-26 16:56:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,017 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2025-04-26 16:56:52,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:52,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:52,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:52,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:52,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:52,029 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:52,029 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:52,032 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:52,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2025-04-26 16:56:52,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,039 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2025-04-26 16:56:52,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:52,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:52,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:52,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:52,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:52,052 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:52,052 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:52,053 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:52,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2025-04-26 16:56:52,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,061 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2025-04-26 16:56:52,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:52,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:52,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:52,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:52,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:52,074 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:52,074 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:52,078 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:52,081 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:56:52,081 INFO L437 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:56:52,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,082 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2025-04-26 16:56:52,084 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:52,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2025-04-26 16:56:52,099 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:52,099 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:52,099 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z) = -1*z Supporting invariants [-1*t - 1 >= 0] [2025-04-26 16:56:52,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2025-04-26 16:56:52,106 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:52,124 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:52,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:56:52,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:56:52,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:52,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:52,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:52,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:52,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:52,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:52,201 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:52,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:52,216 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:52,216 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 937 states and 1703 transitions. cyclomatic complexity: 872 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (in total 15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:52,278 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 937 states and 1703 transitions. cyclomatic complexity: 872. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (in total 15), 4 states have internal predecessors, (15), 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 2306 states and 4193 transitions. Complement of second has 9 states. [2025-04-26 16:56:52,278 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:56:52,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (in total 15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2025-04-26 16:56:52,279 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 115 transitions. Stem has 12 letters. Loop has 3 letters. [2025-04-26 16:56:52,279 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:52,279 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 115 transitions. Stem has 15 letters. Loop has 3 letters. [2025-04-26 16:56:52,280 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:52,280 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 115 transitions. Stem has 12 letters. Loop has 6 letters. [2025-04-26 16:56:52,280 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:52,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2306 states and 4193 transitions. [2025-04-26 16:56:52,288 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 45 [2025-04-26 16:56:52,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2306 states to 1679 states and 3011 transitions. [2025-04-26 16:56:52,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 282 [2025-04-26 16:56:52,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 284 [2025-04-26 16:56:52,295 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1679 states and 3011 transitions. [2025-04-26 16:56:52,295 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:52,295 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1679 states and 3011 transitions. [2025-04-26 16:56:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states and 3011 transitions. [2025-04-26 16:56:52,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 876. [2025-04-26 16:56:52,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 876 states have (on average 1.8287671232876712) internal successors, (in total 1602), 875 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1602 transitions. [2025-04-26 16:56:52,310 INFO L240 hiAutomatonCegarLoop]: Abstraction has 876 states and 1602 transitions. [2025-04-26 16:56:52,310 INFO L438 stractBuchiCegarLoop]: Abstraction has 876 states and 1602 transitions. [2025-04-26 16:56:52,311 INFO L340 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2025-04-26 16:56:52,311 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 876 states and 1602 transitions. [2025-04-26 16:56:52,312 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-04-26 16:56:52,312 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:52,312 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:52,313 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:56:52,313 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:52,313 INFO L752 eck$LassoCheckResult]: Stem: "[127] $Ultimate##0-->L22: Formula: (< v_b_5 0) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[108] L22-->L20-1: Formula: (= v_t_5 1) InVars {} OutVars{t=v_t_5} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[130] L38-->L53-1: Formula: (<= 0 v_x1_4) InVars {x1=v_x1_4} OutVars{x1=v_x1_4} AuxVars[] AssignedVars[]" "[132] L53-1-->L57-1: Formula: (<= 0 v_y1_4) InVars {y1=v_y1_4} OutVars{y1=v_y1_4} AuxVars[] AssignedVars[]" "[137] L57-1-->L59: Formula: (<= v_b1_3 v_r1_4) InVars {r1=v_r1_4, b1=v_b1_3} OutVars{r1=v_r1_4, b1=v_b1_3} AuxVars[] AssignedVars[]" "[143] L59-->L60: Formula: (= (+ v_q1_2 1) v_q1_1) InVars {q1=v_q1_2} OutVars{q1=v_q1_1} AuxVars[] AssignedVars[q1]" "[169] L29-1-->L67: 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]" "[146] L60-->L57-1: Formula: (= v_r1_2 (+ v_b1_1 v_r1_1)) InVars {r1=v_r1_2, b1=v_b1_1} OutVars{r1=v_r1_1, b1=v_b1_1} AuxVars[] AssignedVars[r1]" "[136] L57-1-->thread1FINAL: Formula: (< v_r1_3 v_b1_2) InVars {r1=v_r1_3, b1=v_b1_2} OutVars{r1=v_r1_3, b1=v_b1_2} AuxVars[] AssignedVars[]" "[148] L67-->L71-2: Formula: (< v_x2_1 0) InVars {x2=v_x2_1} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[]" [2025-04-26 16:56:52,313 INFO L754 eck$LassoCheckResult]: Loop: "[152] L71-2-->L71: Formula: (< v_z_7 0) InVars {z=v_z_7} OutVars{z=v_z_7} AuxVars[] AssignedVars[]" "[157] L71-->L73: Formula: (< v_b_3 0) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[161] L73-->L71-2: Formula: (= (+ v_z_9 v_t_3) v_z_8) InVars {t=v_t_3, z=v_z_9} OutVars{t=v_t_3, z=v_z_8} AuxVars[] AssignedVars[z]" [2025-04-26 16:56:52,313 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1721963038, now seen corresponding path program 1 times [2025-04-26 16:56:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:52,313 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950358349] [2025-04-26 16:56:52,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:52,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:56:52,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:56:52,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:52,317 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:52,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:56:52,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:56:52,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:52,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:52,321 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash 180891, now seen corresponding path program 1 times [2025-04-26 16:56:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:52,321 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680072259] [2025-04-26 16:56:52,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:52,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:52,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:52,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:52,325 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:52,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:52,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:52,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:52,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:52,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:52,330 INFO L85 PathProgramCache]: Analyzing trace with hash 88669466, now seen corresponding path program 1 times [2025-04-26 16:56:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:52,330 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198200463] [2025-04-26 16:56:52,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:52,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:52,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 16:56:52,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 16:56:52,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:52,333 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:52,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 16:56:52,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 16:56:52,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:52,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:52,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:52,493 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:52,493 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:52,493 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:52,493 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:52,493 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:52,493 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,493 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:52,493 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:52,493 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration11_Lasso [2025-04-26 16:56:52,493 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:52,493 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:52,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,604 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:52,604 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:52,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,606 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2025-04-26 16:56:52,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,624 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,625 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q2=0} Honda state: {q2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,632 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2025-04-26 16:56:52,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,653 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,653 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b1=6, r1=7, a1=7} Honda state: {b1=6, r1=1, a1=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2025-04-26 16:56:52,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,660 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2025-04-26 16:56:52,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,672 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,672 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2025-04-26 16:56:52,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,679 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2025-04-26 16:56:52,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,697 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,697 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=-1} Honda state: {b=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2025-04-26 16:56:52,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,704 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2025-04-26 16:56:52,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,724 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,724 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r2=6, b2=4, a2=6} Honda state: {r2=6, b2=4, a2=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2025-04-26 16:56:52,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,733 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2025-04-26 16:56:52,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,745 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,745 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2025-04-26 16:56:52,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,751 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2025-04-26 16:56:52,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,763 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,763 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2025-04-26 16:56:52,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,770 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2025-04-26 16:56:52,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,783 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:52,783 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q1=0} Honda state: {q1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:52,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:52,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,807 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2025-04-26 16:56:52,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:52,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2025-04-26 16:56:52,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:52,843 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:52,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2025-04-26 16:56:52,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:52,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:52,908 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:52,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2025-04-26 16:56:52,912 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:52,913 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:52,913 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:52,913 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:52,913 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:52,913 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:52,913 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:52,913 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:52,913 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration11_Lasso [2025-04-26 16:56:52,913 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:52,913 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:52,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:52,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,036 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:53,036 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:53,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,038 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2025-04-26 16:56:53,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,050 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,050 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,052 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:53,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2025-04-26 16:56:53,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,059 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2025-04-26 16:56:53,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,074 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,074 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,077 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:53,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2025-04-26 16:56:53,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,085 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2025-04-26 16:56:53,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,099 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,099 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,101 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:53,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2025-04-26 16:56:53,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,108 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2025-04-26 16:56:53,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,126 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,126 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,128 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:53,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2025-04-26 16:56:53,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,135 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2025-04-26 16:56:53,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,149 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,149 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,151 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:53,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2025-04-26 16:56:53,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,159 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2025-04-26 16:56:53,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,172 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,172 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,175 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:53,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2025-04-26 16:56:53,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,182 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2025-04-26 16:56:53,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:53,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:53,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:53,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:53,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:53,195 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:53,195 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:53,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:53,202 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:56:53,202 INFO L437 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:56:53,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,204 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2025-04-26 16:56:53,205 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:53,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2025-04-26 16:56:53,220 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:53,221 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:53,221 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z) = -1*z Supporting invariants [1*t - 1 >= 0] [2025-04-26 16:56:53,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2025-04-26 16:56:53,228 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:53,239 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:53,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:56:53,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:56:53,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:53,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:53,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:53,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:53,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:53,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:53,324 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:53,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:53,341 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:53,341 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 876 states and 1602 transitions. cyclomatic complexity: 825 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (in total 15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:53,405 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 876 states and 1602 transitions. cyclomatic complexity: 825. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (in total 15), 4 states have internal predecessors, (15), 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 2212 states and 4039 transitions. Complement of second has 9 states. [2025-04-26 16:56:53,406 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:56:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (in total 15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2025-04-26 16:56:53,406 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 115 transitions. Stem has 12 letters. Loop has 3 letters. [2025-04-26 16:56:53,406 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:53,406 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 115 transitions. Stem has 15 letters. Loop has 3 letters. [2025-04-26 16:56:53,406 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:53,406 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 115 transitions. Stem has 12 letters. Loop has 6 letters. [2025-04-26 16:56:53,406 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:53,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2212 states and 4039 transitions. [2025-04-26 16:56:53,428 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 36 [2025-04-26 16:56:53,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2212 states to 1584 states and 2855 transitions. [2025-04-26 16:56:53,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2025-04-26 16:56:53,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2025-04-26 16:56:53,435 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1584 states and 2855 transitions. [2025-04-26 16:56:53,435 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:56:53,435 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1584 states and 2855 transitions. [2025-04-26 16:56:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states and 2855 transitions. [2025-04-26 16:56:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 807. [2025-04-26 16:56:53,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 807 states have (on average 1.835192069392813) internal successors, (in total 1481), 806 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1481 transitions. [2025-04-26 16:56:53,451 INFO L240 hiAutomatonCegarLoop]: Abstraction has 807 states and 1481 transitions. [2025-04-26 16:56:53,451 INFO L438 stractBuchiCegarLoop]: Abstraction has 807 states and 1481 transitions. [2025-04-26 16:56:53,451 INFO L340 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2025-04-26 16:56:53,451 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 807 states and 1481 transitions. [2025-04-26 16:56:53,453 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2025-04-26 16:56:53,453 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:56:53,453 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:56:53,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:56:53,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:56:53,453 INFO L752 eck$LassoCheckResult]: Stem: "[128] $Ultimate##0-->L26: Formula: (<= 0 v_b_6) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[116] L26-->L20-1: Formula: (= (+ v_t_6 1) 0) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[111] L20-1-->L29: Formula: (and (< 0 v_b1_4) (= v_q2_3 0) (< v_b2_4 v_a2_1) (= v_a2_1 v_r2_5) (= v_q1_3 0) (< 0 v_b2_4) (= v_a1_1 v_r1_5) (< v_b1_4 v_a1_1)) InVars {a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} OutVars{a1=v_a1_1, r2=v_r2_5, b2=v_b2_4, q1=v_q1_3, a2=v_a2_1, q2=v_q2_3, r1=v_r1_5, b1=v_b1_4} AuxVars[] AssignedVars[]" "[166] L29-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[130] L38-->L53-1: Formula: (<= 0 v_x1_4) InVars {x1=v_x1_4} OutVars{x1=v_x1_4} AuxVars[] AssignedVars[]" "[132] L53-1-->L57-1: Formula: (<= 0 v_y1_4) InVars {y1=v_y1_4} OutVars{y1=v_y1_4} AuxVars[] AssignedVars[]" "[137] L57-1-->L59: Formula: (<= v_b1_3 v_r1_4) InVars {r1=v_r1_4, b1=v_b1_3} OutVars{r1=v_r1_4, b1=v_b1_3} AuxVars[] AssignedVars[]" "[143] L59-->L60: Formula: (= (+ v_q1_2 1) v_q1_1) InVars {q1=v_q1_2} OutVars{q1=v_q1_1} AuxVars[] AssignedVars[q1]" "[169] L29-1-->L67: 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]" "[146] L60-->L57-1: Formula: (= v_r1_2 (+ v_b1_1 v_r1_1)) InVars {r1=v_r1_2, b1=v_b1_1} OutVars{r1=v_r1_1, b1=v_b1_1} AuxVars[] AssignedVars[r1]" "[136] L57-1-->thread1FINAL: Formula: (< v_r1_3 v_b1_2) InVars {r1=v_r1_3, b1=v_b1_2} OutVars{r1=v_r1_3, b1=v_b1_2} AuxVars[] AssignedVars[]" "[147] L67-->L82-1: Formula: (<= 0 v_x2_4) InVars {x2=v_x2_4} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[]" "[149] L82-1-->L86-1: Formula: (<= 0 v_y2_4) InVars {y2=v_y2_4} OutVars{y2=v_y2_4} AuxVars[] AssignedVars[]" [2025-04-26 16:56:53,454 INFO L754 eck$LassoCheckResult]: Loop: "[154] L86-1-->L88: Formula: (<= v_b2_1 v_r2_1) InVars {r2=v_r2_1, b2=v_b2_1} OutVars{r2=v_r2_1, b2=v_b2_1} AuxVars[] AssignedVars[]" "[160] L88-->L89: Formula: (= v_q2_1 (+ v_q2_2 1)) InVars {q2=v_q2_2} OutVars{q2=v_q2_1} AuxVars[] AssignedVars[q2]" "[163] L89-->L86-1: Formula: (= v_r2_3 (+ v_b2_2 v_r2_2)) InVars {r2=v_r2_3, b2=v_b2_2} OutVars{r2=v_r2_2, b2=v_b2_2} AuxVars[] AssignedVars[r2]" [2025-04-26 16:56:53,454 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:53,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1101987763, now seen corresponding path program 1 times [2025-04-26 16:56:53,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:53,454 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996067622] [2025-04-26 16:56:53,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:53,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:53,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:56:53,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:56:53,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:53,460 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:53,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:56:53,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:56:53,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:53,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:53,464 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:53,464 INFO L85 PathProgramCache]: Analyzing trace with hash 182908, now seen corresponding path program 1 times [2025-04-26 16:56:53,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:53,464 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011214059] [2025-04-26 16:56:53,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:53,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:53,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:53,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:53,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:53,467 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:53,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:53,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:53,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:53,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:53,469 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1412716208, now seen corresponding path program 1 times [2025-04-26 16:56:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:56:53,469 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128203718] [2025-04-26 16:56:53,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:56:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:56:53,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:56:53,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:56:53,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:53,476 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:56:53,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:56:53,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:56:53,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:53,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:56:53,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:56:53,495 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:53,495 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:53,496 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:53,496 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:53,496 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:53,496 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,496 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:53,496 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:53,496 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration12_Loop [2025-04-26 16:56:53,496 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:53,496 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:53,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,520 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:53,520 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:53,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,523 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2025-04-26 16:56:53,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,544 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,544 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b2=0, r2=0} Honda state: {b2=0, r2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:53,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,552 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2025-04-26 16:56:53,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:53,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,576 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2025-04-26 16:56:53,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:53,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,606 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,606 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {q2=0} Honda state: {q2=0} Generalized eigenvectors: [{q2=-1}, {q2=7}, {q2=-5}] Lambdas: [8, 1, 1] Nus: [1, 0] [2025-04-26 16:56:53,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:53,750 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:53,750 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:53,750 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:53,750 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:53,750 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:56:53,750 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,750 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:53,750 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:53,750 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration12_Lasso [2025-04-26 16:56:53,750 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:53,750 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:53,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:53,853 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:53,853 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:56:53,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,855 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2025-04-26 16:56:53,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,873 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,873 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2025-04-26 16:56:53,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,880 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2025-04-26 16:56:53,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,902 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,902 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1=7, b1=6, a1=7} Honda state: {r1=1, b1=6, a1=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2025-04-26 16:56:53,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,909 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2025-04-26 16:56:53,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,928 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,928 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y1=0} Honda state: {y1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:53,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,937 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2025-04-26 16:56:53,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,950 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,950 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:53,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,958 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2025-04-26 16:56:53,960 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,960 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,970 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,971 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2025-04-26 16:56:53,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,978 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2025-04-26 16:56:53,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:53,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:53,991 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:56:53,991 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:56:53,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2025-04-26 16:56:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:53,998 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:53,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2025-04-26 16:56:54,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:56:54,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:54,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2025-04-26 16:56:54,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,026 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2025-04-26 16:56:54,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:56:54,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:56:54,129 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:56:54,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:54,134 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:56:54,134 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:56:54,134 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:56:54,134 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:56:54,134 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:56:54,134 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,134 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:56:54,135 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:56:54,135 INFO L132 ssoRankerPreferences]: Filename of dumped script: multi.c.bpl_petrified1_Iteration12_Lasso [2025-04-26 16:56:54,135 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:56:54,135 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:56:54,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:56:54,263 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:56:54,263 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:56:54,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,267 INFO L229 MonitoredProcess]: Starting monitored process 104 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2025-04-26 16:56:54,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:54,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:54,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:54,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:54,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:54,280 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:54,280 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:54,282 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:54,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2025-04-26 16:56:54,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,290 INFO L229 MonitoredProcess]: Starting monitored process 105 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2025-04-26 16:56:54,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:54,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:54,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:54,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:54,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:54,304 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:54,304 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:54,307 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:54,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:54,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,315 INFO L229 MonitoredProcess]: Starting monitored process 106 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2025-04-26 16:56:54,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:54,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:54,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:54,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:54,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:54,327 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:54,327 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:54,329 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:54,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2025-04-26 16:56:54,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,337 INFO L229 MonitoredProcess]: Starting monitored process 107 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2025-04-26 16:56:54,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:54,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:54,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:54,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:54,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:54,349 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:54,349 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:54,351 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:54,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2025-04-26 16:56:54,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,360 INFO L229 MonitoredProcess]: Starting monitored process 108 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2025-04-26 16:56:54,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:54,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:54,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:54,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:54,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:54,376 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:54,376 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:54,379 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:56:54,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2025-04-26 16:56:54,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,386 INFO L229 MonitoredProcess]: Starting monitored process 109 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2025-04-26 16:56:54,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:56:54,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:56:54,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:56:54,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:56:54,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:56:54,399 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:56:54,399 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:56:54,403 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:56:54,415 INFO L436 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2025-04-26 16:56:54,415 INFO L437 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2025-04-26 16:56:54,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:56:54,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:56:54,417 INFO L229 MonitoredProcess]: Starting monitored process 110 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:56:54,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2025-04-26 16:56:54,419 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:56:54,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2025-04-26 16:56:54,435 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:56:54,435 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:56:54,435 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(r2) = 1*r2 Supporting invariants [1*b2 - 1 >= 0] [2025-04-26 16:56:54,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2025-04-26 16:56:54,442 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:56:54,455 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:56:54,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:56:54,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:56:54,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:54,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:54,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:56:54,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:54,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:56:54,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:56:54,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:56:54,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:56:54,527 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:56:54,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:56:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:56:54,543 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:56:54,543 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 807 states and 1481 transitions. cyclomatic complexity: 764 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (in total 16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:54,583 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 807 states and 1481 transitions. cyclomatic complexity: 764. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (in total 16), 4 states have internal predecessors, (16), 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 929 states and 1701 transitions. Complement of second has 7 states. [2025-04-26 16:56:54,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:56:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (in total 16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:56:54,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-04-26 16:56:54,584 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 86 transitions. Stem has 13 letters. Loop has 3 letters. [2025-04-26 16:56:54,584 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:54,584 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 86 transitions. Stem has 16 letters. Loop has 3 letters. [2025-04-26 16:56:54,584 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:54,584 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 86 transitions. Stem has 13 letters. Loop has 6 letters. [2025-04-26 16:56:54,585 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:56:54,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 929 states and 1701 transitions. [2025-04-26 16:56:54,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:56:54,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 929 states to 0 states and 0 transitions. [2025-04-26 16:56:54,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:56:54,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:56:54,589 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:56:54,589 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:56:54,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:56:54,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:56:54,589 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:56:54,589 INFO L340 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2025-04-26 16:56:54,589 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:56:54,589 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:56:54,589 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:56:54,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:56:54,600 INFO L201 PluginConnector]: Adding new model multi.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:56:54 BoogieIcfgContainer [2025-04-26 16:56:54,601 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:56:54,601 INFO L158 Benchmark]: Toolchain (without parser) took 8635.34ms. Allocated memory was 159.4MB in the beginning and 264.2MB in the end (delta: 104.9MB). Free memory was 87.6MB in the beginning and 111.5MB in the end (delta: -23.9MB). Peak memory consumption was 78.2MB. Max. memory is 8.0GB. [2025-04-26 16:56:54,601 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 107.9kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:56:54,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.82ms. Allocated memory is still 159.4MB. Free memory was 87.5MB in the beginning and 85.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:56:54,602 INFO L158 Benchmark]: Boogie Preprocessor took 29.26ms. Allocated memory is still 159.4MB. Free memory was 85.6MB in the beginning and 84.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:56:54,602 INFO L158 Benchmark]: RCFGBuilder took 232.40ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 74.3MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:56:54,602 INFO L158 Benchmark]: BuchiAutomizer took 8340.31ms. Allocated memory was 159.4MB in the beginning and 264.2MB in the end (delta: 104.9MB). Free memory was 74.2MB in the beginning and 111.5MB in the end (delta: -37.3MB). Peak memory consumption was 65.6MB. Max. memory is 8.0GB. [2025-04-26 16:56:54,603 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 0.16ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 107.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.82ms. Allocated memory is still 159.4MB. Free memory was 87.5MB in the beginning and 85.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 29.26ms. Allocated memory is still 159.4MB. Free memory was 85.6MB in the beginning and 84.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 232.40ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 74.3MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 8340.31ms. Allocated memory was 159.4MB in the beginning and 264.2MB in the end (delta: 104.9MB). Free memory was 74.2MB in the beginning and 111.5MB in the end (delta: -37.3MB). Peak memory consumption was 65.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.2s and 13 iterations. TraceHistogramMax:1. Analysis of lassos took 6.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 12. Automata minimization 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 2943 StatesRemovedByMinimization, 12 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [10, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1001 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 997 mSDsluCounter, 1566 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 756 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 316 IncrementalHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 810 mSDtfsCounter, 316 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc2 concLT0 SILN0 SILU0 SILI0 SILT1 lasso6 LassoPreprocessingBenchmarks: Lassos: inital45 mio100 ax100 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 64ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 34 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 221, Number of transitions in reduction automaton: 350, Number of states in reduction automaton: 193, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (3 trivial, 10 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 and consists of 4 locations. One deterministic module has affine ranking function -1 * y1 and consists of 4 locations. One deterministic module has affine ranking function -1 * z and consists of 7 locations. One deterministic module has affine ranking function -1 * z and consists of 7 locations. One deterministic module has affine ranking function 2 * r1 + -2 * b1 + a1 and consists of 5 locations. One deterministic module has affine ranking function -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function -1 * z and consists of 6 locations. One deterministic module has affine ranking function -1 * z and consists of 6 locations. One deterministic module has affine ranking function r2 and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:56:54,614 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...