/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/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:21:56,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:21:56,259 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:21:56,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:21:56,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:21:56,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:21:56,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:21:56,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:21:56,281 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:21:56,281 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:21:56,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:21:56,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:21:56,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:21:56,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:21:56,283 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:21:56,283 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:21:56,283 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:21:56,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:21:56,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:21:56,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:21:56,483 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:21:56,483 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:21:56,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl [2025-04-26 16:21:56,484 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl' [2025-04-26 16:21:56,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:21:56,502 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:21:56,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:21:56,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:21:56,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:21:56,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,535 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:21:56,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:21:56,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:21:56,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:21:56,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:21:56,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,550 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:21:56,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:21:56,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:21:56,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:21:56,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/1) ... [2025-04-26 16:21:56,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:56,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:56,590 INFO L229 MonitoredProcess]: Starting monitored process 1 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 16:21:56,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:21:56,616 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:21:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:21:56,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:21:56,616 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:21:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:21:56,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:21:56,616 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:21:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:21:56,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:21:56,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:21:56,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:21:56,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:21:56,617 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 16:21:56,654 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:21:56,656 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:21:56,747 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:21:56,747 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:21:56,765 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:21:56,765 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:21:56,766 INFO L201 PluginConnector]: Adding new model mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:21:56 BoogieIcfgContainer [2025-04-26 16:21:56,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:21:56,766 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:21:56,766 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:21:56,770 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:21:56,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:21:56,771 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:56" (1/2) ... [2025-04-26 16:21:56,772 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@133eca11 and model type mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:21:56, skipping insertion in model container [2025-04-26 16:21:56,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:21:56,772 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:21:56" (2/2) ... [2025-04-26 16:21:56,773 INFO L376 chiAutomizerObserver]: Analyzing ICFG mult-dist.wvr.bpl [2025-04-26 16:21:56,814 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:21:56,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 79 flow [2025-04-26 16:21:56,867 INFO L116 PetriNetUnfolderBase]: 3/23 cut-off events. [2025-04-26 16:21:56,869 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:21:56,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 3/23 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-04-26 16:21:56,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 79 flow [2025-04-26 16:21:56,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 23 transitions, 64 flow [2025-04-26 16:21:56,874 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 30 places, 23 transitions, 64 flow [2025-04-26 16:21:56,882 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:21:56,882 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:21:56,882 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:21:56,883 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:21:56,883 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:21:56,883 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:21:56,883 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:21:56,883 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:21:56,884 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:21:56,929 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 84 [2025-04-26 16:21:56,929 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:56,930 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:56,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:21:56,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:21:56,933 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:21:56,933 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 110 states, but on-demand construction may add more states [2025-04-26 16:21:56,938 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 84 [2025-04-26 16:21:56,939 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:56,939 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:56,939 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:21:56,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:21:56,943 INFO L752 eck$LassoCheckResult]: Stem: "[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[]" "[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:21:56,943 INFO L754 eck$LassoCheckResult]: Loop: "[62] L23-1-->L23: Formula: (< v_i_1_1 v_a_1) InVars {a=v_a_1, i_1=v_i_1_1} OutVars{a=v_a_1, i_1=v_i_1_1} AuxVars[] AssignedVars[]" "[64] L23-->L23-1: Formula: (and (= (+ v_i_1_7 1) v_i_1_6) (= (+ v_c_5 v_x_1_6) v_x_1_5)) InVars {x_1=v_x_1_6, c=v_c_5, i_1=v_i_1_7} OutVars{x_1=v_x_1_5, c=v_c_5, i_1=v_i_1_6} AuxVars[] AssignedVars[x_1, i_1]" [2025-04-26 16:21:56,947 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2710, now seen corresponding path program 1 times [2025-04-26 16:21:56,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:56,953 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506431596] [2025-04-26 16:21:56,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:56,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,005 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:57,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:57,032 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2947, now seen corresponding path program 1 times [2025-04-26 16:21:57,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:57,032 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672816431] [2025-04-26 16:21:57,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:57,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:57,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,039 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:57,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:57,044 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2606296, now seen corresponding path program 1 times [2025-04-26 16:21:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:57,044 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914750576] [2025-04-26 16:21:57,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:57,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:57,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:57,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,057 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:57,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:57,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:57,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:57,142 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:57,142 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:57,142 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:57,143 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:57,143 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:57,143 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,143 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:57,143 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:57,143 INFO L132 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:21:57,143 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:57,143 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:57,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:57,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:57,213 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:57,213 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:57,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,217 INFO L229 MonitoredProcess]: Starting monitored process 2 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 16:21:57,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:21:57,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:57,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:57,238 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:57,238 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x_1=0, c=0} Honda state: {x_1=0, c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:21:57,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:57,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,247 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 16:21:57,249 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 16:21:57,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:57,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:57,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:21:57,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,271 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 16:21:57,273 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 16:21:57,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:57,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:57,342 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:57,346 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 16:21:57,346 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:57,346 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:57,346 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:57,346 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:57,346 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:57,346 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,346 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:57,346 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:57,346 INFO L132 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:21:57,346 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:57,347 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:57,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:57,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:57,384 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:57,387 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,390 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 16:21:57,391 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 16:21:57,392 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 16:21:57,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:57,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:57,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:57,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:57,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:57,411 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:57,411 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:57,416 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:21:57,422 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 16:21:57,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,425 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 16:21:57,426 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 16:21:57,427 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 16:21:57,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:57,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:57,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:57,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:57,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:57,443 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:57,443 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:57,446 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:57,451 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:21:57,451 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:21:57,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,454 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 16:21:57,456 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 16:21:57,458 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:57,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:57,461 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:57,461 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:57,461 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(a, i_1) = 1*a - 1*i_1 Supporting invariants [] [2025-04-26 16:21:57,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:21:57,470 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:57,516 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:57,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:57,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:57,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:57,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:57,542 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:57,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:57,567 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 16:21:57,627 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 16:21:57,634 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 110 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:57,769 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 110 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 298 states and 943 transitions. Complement of second has 7 states. [2025-04-26 16:21:57,770 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:57,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2025-04-26 16:21:57,779 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:21:57,780 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:57,780 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:21:57,780 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:57,780 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:21:57,780 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:57,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 298 states and 943 transitions. [2025-04-26 16:21:57,787 INFO L131 ngComponentsAnalysis]: Automaton has 30 accepting balls. 70 [2025-04-26 16:21:57,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 298 states to 182 states and 586 transitions. [2025-04-26 16:21:57,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2025-04-26 16:21:57,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 132 [2025-04-26 16:21:57,799 INFO L74 IsDeterministic]: Start isDeterministic. Operand 182 states and 586 transitions. [2025-04-26 16:21:57,800 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:21:57,800 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 586 transitions. [2025-04-26 16:21:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 586 transitions. [2025-04-26 16:21:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 134. [2025-04-26 16:21:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 3.298507462686567) internal successors, (in total 442), 133 states have internal predecessors, (442), 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 16:21:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 442 transitions. [2025-04-26 16:21:57,832 INFO L240 hiAutomatonCegarLoop]: Abstraction has 134 states and 442 transitions. [2025-04-26 16:21:57,833 INFO L438 stractBuchiCegarLoop]: Abstraction has 134 states and 442 transitions. [2025-04-26 16:21:57,833 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:21:57,833 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 442 transitions. [2025-04-26 16:21:57,834 INFO L131 ngComponentsAnalysis]: Automaton has 30 accepting balls. 70 [2025-04-26 16:21:57,834 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:57,834 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:57,835 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:21:57,835 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:21:57,835 INFO L752 eck$LassoCheckResult]: Stem: "[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[]" "[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[78] L56-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:21:57,835 INFO L754 eck$LassoCheckResult]: Loop: "[66] L34-1-->L34: Formula: (< v_i_2_1 v_b_1) InVars {i_2=v_i_2_1, b=v_b_1} OutVars{i_2=v_i_2_1, b=v_b_1} AuxVars[] AssignedVars[]" "[68] L34-->L34-1: Formula: (and (= v_i_2_6 (+ v_i_2_7 1)) (= v_x_2_5 (+ v_c_7 v_x_2_6))) InVars {i_2=v_i_2_7, x_2=v_x_2_6, c=v_c_7} OutVars{i_2=v_i_2_6, x_2=v_x_2_5, c=v_c_7} AuxVars[] AssignedVars[x_2, i_2]" [2025-04-26 16:21:57,836 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:57,836 INFO L85 PathProgramCache]: Analyzing trace with hash 84088, now seen corresponding path program 1 times [2025-04-26 16:21:57,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:57,836 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349900037] [2025-04-26 16:21:57,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:57,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:57,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:57,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:57,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,840 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:57,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:57,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:57,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:57,848 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:57,848 INFO L85 PathProgramCache]: Analyzing trace with hash 3075, now seen corresponding path program 1 times [2025-04-26 16:21:57,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:57,848 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206457716] [2025-04-26 16:21:57,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:57,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:57,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,854 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:57,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:57,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:57,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:57,858 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:57,858 INFO L85 PathProgramCache]: Analyzing trace with hash 80810682, now seen corresponding path program 1 times [2025-04-26 16:21:57,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:57,858 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430574017] [2025-04-26 16:21:57,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:57,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:57,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:57,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:57,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,863 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:57,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:57,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:57,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:57,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:57,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:57,886 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:57,886 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:57,886 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:57,886 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:57,886 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:57,886 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,886 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:57,886 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:57,886 INFO L132 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:21:57,886 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:57,886 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:57,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:57,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:57,913 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:57,913 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:57,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,915 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 16:21:57,916 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 16:21:57,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:57,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:57,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:21:57,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:57,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:57,936 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 16:21:57,937 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 16:21:57,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:57,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:58,002 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:58,006 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 16:21:58,006 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:58,006 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:58,006 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:58,006 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:58,006 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:58,006 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,007 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:58,007 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:58,007 INFO L132 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:21:58,007 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:58,007 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:58,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:58,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:58,035 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:58,035 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:58,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,037 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 16:21:58,038 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 16:21:58,039 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 16:21:58,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:58,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:58,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:58,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:58,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:58,050 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:58,050 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:58,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:58,054 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:21:58,054 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:21:58,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,056 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 16:21:58,058 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 16:21:58,059 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:58,062 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 16:21:58,062 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:58,062 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:58,062 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(b, i_2) = 1*b - 1*i_2 Supporting invariants [] [2025-04-26 16:21:58,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:21:58,069 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:58,081 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:58,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:58,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:58,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:58,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:58,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:58,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:58,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:58,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:58,095 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:58,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:58,107 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 16:21:58,108 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 16:21:58,108 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 134 states and 442 transitions. cyclomatic complexity: 347 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:58,170 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 134 states and 442 transitions. cyclomatic complexity: 347. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 406 states and 1401 transitions. Complement of second has 6 states. [2025-04-26 16:21:58,170 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 16:21:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2025-04-26 16:21:58,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:21:58,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:58,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:21:58,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:58,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:21:58,172 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:58,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 406 states and 1401 transitions. [2025-04-26 16:21:58,178 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 42 [2025-04-26 16:21:58,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 406 states to 228 states and 788 transitions. [2025-04-26 16:21:58,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2025-04-26 16:21:58,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 127 [2025-04-26 16:21:58,185 INFO L74 IsDeterministic]: Start isDeterministic. Operand 228 states and 788 transitions. [2025-04-26 16:21:58,185 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:21:58,185 INFO L218 hiAutomatonCegarLoop]: Abstraction has 228 states and 788 transitions. [2025-04-26 16:21:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 788 transitions. [2025-04-26 16:21:58,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 187. [2025-04-26 16:21:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 187 states have (on average 3.6149732620320854) internal successors, (in total 676), 186 states have internal predecessors, (676), 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 16:21:58,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 676 transitions. [2025-04-26 16:21:58,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 187 states and 676 transitions. [2025-04-26 16:21:58,198 INFO L438 stractBuchiCegarLoop]: Abstraction has 187 states and 676 transitions. [2025-04-26 16:21:58,198 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:21:58,198 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 187 states and 676 transitions. [2025-04-26 16:21:58,200 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 42 [2025-04-26 16:21:58,200 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:58,200 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:58,201 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:21:58,201 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:21:58,201 INFO L752 eck$LassoCheckResult]: Stem: "[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[]" "[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[78] L56-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[81] L57-->L45-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-04-26 16:21:58,201 INFO L754 eck$LassoCheckResult]: Loop: "[70] L45-1-->L45: Formula: (< v_i_3_3 (+ v_a_5 v_b_5)) InVars {a=v_a_5, i_3=v_i_3_3, b=v_b_5} OutVars{a=v_a_5, i_3=v_i_3_3, b=v_b_5} AuxVars[] AssignedVars[]" "[72] L45-->L45-1: Formula: (and (= (+ v_i_3_7 1) v_i_3_6) (= (+ v_c_9 v_x_3_6) v_x_3_5)) InVars {i_3=v_i_3_7, x_3=v_x_3_6, c=v_c_9} OutVars{i_3=v_i_3_6, x_3=v_x_3_5, c=v_c_9} AuxVars[] AssignedVars[x_3, i_3]" [2025-04-26 16:21:58,202 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:58,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2606809, now seen corresponding path program 1 times [2025-04-26 16:21:58,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:58,202 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318944233] [2025-04-26 16:21:58,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:58,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:58,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:58,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:58,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:58,208 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:58,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:58,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:58,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:58,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:58,212 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash 3203, now seen corresponding path program 1 times [2025-04-26 16:21:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:58,212 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799874833] [2025-04-26 16:21:58,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:58,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:58,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:58,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:58,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:58,215 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:58,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:58,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:58,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:58,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:58,218 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1789821605, now seen corresponding path program 1 times [2025-04-26 16:21:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:58,218 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463550468] [2025-04-26 16:21:58,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:58,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:21:58,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:21:58,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:58,222 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:58,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:21:58,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:21:58,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:58,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:58,252 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:58,252 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:58,252 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:58,252 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:58,252 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:58,252 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,252 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:58,252 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:58,252 INFO L132 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:21:58,252 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:58,252 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:58,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:58,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:58,280 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:58,280 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:58,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,283 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 16:21:58,284 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 16:21:58,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:58,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:58,299 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:58,299 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x_3=0, c=0} Honda state: {x_3=0, c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:21:58,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:21:58,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,307 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 16:21:58,308 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 16:21:58,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:58,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:58,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:58,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,328 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 16:21:58,329 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 16:21:58,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:58,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:58,416 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:58,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:21:58,420 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:58,420 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:58,420 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:58,420 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:58,420 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:58,421 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,421 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:58,421 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:58,421 INFO L132 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:21:58,421 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:58,421 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:58,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:58,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:58,456 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:58,457 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:58,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,459 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 16:21:58,460 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 16:21:58,461 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 16:21:58,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:58,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:58,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:58,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:58,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:58,472 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:58,472 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:58,493 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:21:58,499 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 16:21:58,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,501 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 16:21:58,502 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 16:21:58,502 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 16:21:58,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:58,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:58,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:58,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:58,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:58,513 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:58,513 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:58,515 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:58,518 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:21:58,518 INFO L437 ModelExtractionUtils]: 0 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:21:58,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:58,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:58,520 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 16:21:58,522 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 16:21:58,523 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:58,526 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 16:21:58,526 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:58,526 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:58,526 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(a, b, i_3) = 1*a + 1*b - 1*i_3 Supporting invariants [] [2025-04-26 16:21:58,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 16:21:58,533 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:58,544 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:58,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:58,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:58,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:58,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:58,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:58,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:58,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:58,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:58,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:58,561 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:58,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:58,574 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 16:21:58,575 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 16:21:58,575 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 187 states and 676 transitions. cyclomatic complexity: 530 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:58,643 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 187 states and 676 transitions. cyclomatic complexity: 530. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 504 states and 1777 transitions. Complement of second has 6 states. [2025-04-26 16:21:58,643 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 16:21:58,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2025-04-26 16:21:58,644 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:21:58,644 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:58,644 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:21:58,644 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:58,645 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:21:58,645 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:58,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 504 states and 1777 transitions. [2025-04-26 16:21:58,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:21:58,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 504 states to 0 states and 0 transitions. [2025-04-26 16:21:58,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:21:58,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:21:58,650 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:21:58,650 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:21:58,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:58,650 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:58,650 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:58,650 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:21:58,650 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:21:58,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:21:58,650 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:21:58,656 INFO L201 PluginConnector]: Adding new model mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:21:58 BoogieIcfgContainer [2025-04-26 16:21:58,656 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:21:58,657 INFO L158 Benchmark]: Toolchain (without parser) took 2154.35ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 86.8MB in the beginning and 25.1MB in the end (delta: 61.7MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB. [2025-04-26 16:21:58,657 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:58,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.25ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:58,657 INFO L158 Benchmark]: Boogie Preprocessor took 26.41ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 83.8MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:21:58,658 INFO L158 Benchmark]: RCFGBuilder took 200.54ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 74.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:21:58,658 INFO L158 Benchmark]: BuchiAutomizer took 1889.74ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 74.0MB in the beginning and 25.1MB in the end (delta: 48.9MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2025-04-26 16:21:58,660 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 is still 87.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.25ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 26.41ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 83.8MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 200.54ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 74.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1889.74ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 74.0MB in the beginning and 25.1MB in the end (delta: 48.9MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 89 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 36 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function a + -1 * i_1 and consists of 5 locations. One deterministic module has affine ranking function -1 * i_2 + b and consists of 4 locations. One deterministic module has affine ranking function -1 * i_3 + b + a and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:21:58,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...