/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 /storage/cav23-termute-examples/2_thr/interleaved2.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:20,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:20,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:20,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:20,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:20,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:20,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:20,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:20,729 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:20,729 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:20,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:20,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:20,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:20,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:20,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:20,731 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:20,731 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:20,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:20,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:20,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:20,947 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:20,948 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:20,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/interleaved2.c.bpl [2025-04-26 16:24:20,949 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/interleaved2.c.bpl' [2025-04-26 16:24:20,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:20,961 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:20,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:20,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:20,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:20,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:20,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:20,996 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:20,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:20,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:20,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:20,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:21,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,005 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:21,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:21,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:21,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:21,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/1) ... [2025-04-26 16:24:21,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:21,048 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 16:24:21,051 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 16:24:21,072 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:21,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:21,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:21,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:21,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:21,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:21,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:21,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:21,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:21,074 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 16:24:21,109 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:21,111 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:21,193 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:21,194 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:21,205 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:21,205 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:21,206 INFO L201 PluginConnector]: Adding new model interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:21 BoogieIcfgContainer [2025-04-26 16:24:21,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:21,206 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:21,206 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:21,212 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:21,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:21,213 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:20" (1/2) ... [2025-04-26 16:24:21,214 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16d43393 and model type interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:21, skipping insertion in model container [2025-04-26 16:24:21,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:21,214 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:21" (2/2) ... [2025-04-26 16:24:21,215 INFO L376 chiAutomizerObserver]: Analyzing ICFG interleaved2.c.bpl [2025-04-26 16:24:21,263 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:24:21,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 22 transitions, 58 flow [2025-04-26 16:24:21,316 INFO L116 PetriNetUnfolderBase]: 2/18 cut-off events. [2025-04-26 16:24:21,317 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:24:21,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 2/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2025-04-26 16:24:21,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 22 transitions, 58 flow [2025-04-26 16:24:21,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 18 transitions, 48 flow [2025-04-26 16:24:21,323 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 23 places, 18 transitions, 48 flow [2025-04-26 16:24:21,332 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:21,333 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:21,333 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:21,333 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:21,333 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:21,333 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:21,333 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:21,333 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:21,334 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:21,365 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 40 [2025-04-26 16:24:21,365 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:21,365 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:21,368 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:21,368 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:24:21,368 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:21,368 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 51 states, but on-demand construction may add more states [2025-04-26 16:24:21,371 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 40 [2025-04-26 16:24:21,371 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:21,371 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:21,371 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:21,371 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:24:21,376 INFO L752 eck$LassoCheckResult]: Stem: "[40] $Ultimate##0-->L12: Formula: (and (= v_f2_4 0) (= v_x1_5 0) (= v_x2_5 0) (= v_f1_4 0)) InVars {x1=v_x1_5, f2=v_f2_4, x2=v_x2_5, f1=v_f1_4} OutVars{x1=v_x1_5, f2=v_f2_4, x2=v_x2_5, f1=v_f1_4} AuxVars[] AssignedVars[]" "[60] L12-->L25-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:24:21,377 INFO L754 eck$LassoCheckResult]: Loop: "[47] L25-1-->L23: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[49] L23-->L24: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[50] L24-->L25: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[51] L25-->L25-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-04-26 16:24:21,380 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2261, now seen corresponding path program 1 times [2025-04-26 16:24:21,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:21,386 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848533791] [2025-04-26 16:24:21,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:21,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:21,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:21,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:21,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:21,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:21,443 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:21,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:21,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:21,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:21,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:21,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:21,463 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:21,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2372388, now seen corresponding path program 1 times [2025-04-26 16:24:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:21,463 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361053732] [2025-04-26 16:24:21,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:21,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:21,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:21,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:21,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:21,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:21,472 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:21,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:21,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:21,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:21,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:21,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:21,479 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:21,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2089529848, now seen corresponding path program 1 times [2025-04-26 16:24:21,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:21,480 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243507217] [2025-04-26 16:24:21,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:21,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:21,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:21,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:21,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:21,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:21,554 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 16:24:21,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:24:21,554 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243507217] [2025-04-26 16:24:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243507217] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:24:21,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:24:21,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:24:21,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453309926] [2025-04-26 16:24:21,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:24:21,643 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:21,644 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:21,644 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:21,644 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:21,644 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:21,644 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,644 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:21,644 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:21,644 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved2.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:21,644 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:21,644 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:21,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:21,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:21,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:21,771 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:21,773 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:21,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:21,779 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 16:24:21,783 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 16:24:21,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:21,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:21,799 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:21,799 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:21,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:24:21,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:21,807 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 16:24:21,808 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 16:24:21,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:21,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:21,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:21,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:21,829 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 16:24:21,830 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 16:24:21,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:21,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:21,875 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:21,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:24:21,879 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:21,879 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:21,879 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:21,879 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:21,879 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:21,879 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,879 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:21,879 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:21,879 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved2.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:21,879 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:21,880 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:21,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:21,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:21,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:21,942 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:21,945 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:21,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:21,949 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 16:24:21,950 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 16:24:21,952 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 16:24:21,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:21,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:21,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:21,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:21,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:21,971 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:21,971 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:21,973 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:21,976 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:21,977 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:21,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:21,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:21,981 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 16:24:21,984 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 16:24:21,987 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:21,990 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 16:24:21,991 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:21,991 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:21,991 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-04-26 16:24:21,997 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 16:24:21,999 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:22,019 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:22,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:22,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:22,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:22,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:22,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:22,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:22,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:22,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:22,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:22,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:22,083 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 16:24:22,108 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:24:22,110 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 51 states, but on-demand construction may add more states 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 16:24:22,154 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 51 states, but on-demand construction may add more states. 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 170 states and 353 transitions. Complement of second has 5 states. [2025-04-26 16:24:22,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:22,162 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 16:24:22,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2025-04-26 16:24:22,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:24:22,172 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:22,172 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:24:22,172 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:22,172 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 2 letters. Loop has 8 letters. [2025-04-26 16:24:22,172 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:22,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 353 transitions. [2025-04-26 16:24:22,180 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 36 [2025-04-26 16:24:22,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 108 states and 226 transitions. [2025-04-26 16:24:22,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2025-04-26 16:24:22,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2025-04-26 16:24:22,185 INFO L74 IsDeterministic]: Start isDeterministic. Operand 108 states and 226 transitions. [2025-04-26 16:24:22,186 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:22,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 226 transitions. [2025-04-26 16:24:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 226 transitions. [2025-04-26 16:24:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 84. [2025-04-26 16:24:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 2.107142857142857) internal successors, (in total 177), 83 states have internal predecessors, (177), 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 16:24:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 177 transitions. [2025-04-26 16:24:22,213 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84 states and 177 transitions. [2025-04-26 16:24:22,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:24:22,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:24:22,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:24:22,215 INFO L87 Difference]: Start difference. First operand 84 states and 177 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (in total 6), 2 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 16:24:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:24:22,243 INFO L93 Difference]: Finished difference Result 115 states and 214 transitions. [2025-04-26 16:24:22,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 214 transitions. [2025-04-26 16:24:22,245 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 44 [2025-04-26 16:24:22,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 80 states and 153 transitions. [2025-04-26 16:24:22,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2025-04-26 16:24:22,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2025-04-26 16:24:22,246 INFO L74 IsDeterministic]: Start isDeterministic. Operand 80 states and 153 transitions. [2025-04-26 16:24:22,247 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:22,247 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 153 transitions. [2025-04-26 16:24:22,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 153 transitions. [2025-04-26 16:24:22,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 52. [2025-04-26 16:24:22,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.9423076923076923) internal successors, (in total 101), 51 states have internal predecessors, (101), 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 16:24:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2025-04-26 16:24:22,249 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 101 transitions. [2025-04-26 16:24:22,250 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:24:22,250 INFO L438 stractBuchiCegarLoop]: Abstraction has 52 states and 101 transitions. [2025-04-26 16:24:22,250 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:22,251 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 101 transitions. [2025-04-26 16:24:22,252 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 44 [2025-04-26 16:24:22,252 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:22,252 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:22,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:22,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:24:22,252 INFO L752 eck$LassoCheckResult]: Stem: "[40] $Ultimate##0-->L12: Formula: (and (= v_f2_4 0) (= v_x1_5 0) (= v_x2_5 0) (= v_f1_4 0)) InVars {x1=v_x1_5, f2=v_f2_4, x2=v_x2_5, f1=v_f1_4} OutVars{x1=v_x1_5, f2=v_f2_4, x2=v_x2_5, f1=v_f1_4} AuxVars[] AssignedVars[]" "[60] L12-->L25-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[63] L12-1-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:24:22,253 INFO L754 eck$LassoCheckResult]: Loop: "[47] L25-1-->L23: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[49] L23-->L24: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[50] L24-->L25: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[53] L36-->L38: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[55] L38-->L38-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[56] L38-1-->L44: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[57] L44-->L36: Formula: (= v_f1_3 1) InVars {} OutVars{f1=v_f1_3} AuxVars[] AssignedVars[f1]" "[51] L25-->L25-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-04-26 16:24:22,253 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash 70154, now seen corresponding path program 1 times [2025-04-26 16:24:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:22,253 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499434056] [2025-04-26 16:24:22,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:22,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:22,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:22,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:22,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:22,260 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:22,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:22,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:22,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:22,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:22,264 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:22,264 INFO L85 PathProgramCache]: Analyzing trace with hash 520358369, now seen corresponding path program 1 times [2025-04-26 16:24:22,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:22,264 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040295817] [2025-04-26 16:24:22,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:22,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:22,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:22,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:22,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:22,270 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:22,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:22,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:22,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:22,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:22,274 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:22,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1808071958, now seen corresponding path program 1 times [2025-04-26 16:24:22,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:22,275 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412257780] [2025-04-26 16:24:22,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:22,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:22,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:24:22,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:24:22,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:22,281 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:22,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:24:22,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:24:22,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:22,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:22,364 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:22,364 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:22,364 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:22,364 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:22,364 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:22,364 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,364 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:22,364 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:22,364 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved2.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:22,364 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:22,364 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:22,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:22,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:22,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:22,415 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:22,416 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:22,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,418 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 16:24:22,419 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 16:24:22,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:22,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:22,431 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:22,431 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=0} Honda state: {f2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:22,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:24:22,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,439 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 16:24:22,439 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 16:24:22,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:22,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:22,452 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:22,452 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f1=0} Honda state: {f1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:22,457 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 16:24:22,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,460 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 16:24:22,461 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 16:24:22,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:22,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:22,478 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 16:24:22,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,481 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 16:24:22,481 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 16:24:22,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:22,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:22,579 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:22,584 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 16:24:22,584 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:22,584 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:22,584 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:22,584 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:22,584 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:22,584 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,584 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:22,584 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:22,585 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved2.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:22,585 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:22,585 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:22,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:22,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:22,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:22,639 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:22,639 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:22,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,642 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 16:24:22,644 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 16:24:22,644 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 16:24:22,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:22,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:22,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:22,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:22,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:22,656 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:22,656 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:22,657 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:22,662 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 16:24:22,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,664 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 16:24:22,665 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 16:24:22,665 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 16:24:22,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:22,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:22,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:22,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:22,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:22,677 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:22,677 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:22,678 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:22,684 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 16:24:22,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,686 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 16:24:22,687 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 16:24:22,688 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 16:24:22,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:22,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:22,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:22,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:22,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:22,700 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:22,701 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:22,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:22,709 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:22,709 INFO L437 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:22,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:22,712 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 16:24:22,714 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 16:24:22,714 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:22,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:22,718 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:22,718 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:22,718 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-04-26 16:24:22,724 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 16:24:22,726 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:22,741 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:22,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:22,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:22,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:22,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:22,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:22,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:22,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:22,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:22,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:22,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:22,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:22,820 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 16:24:22,822 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:24:22,822 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 101 transitions. cyclomatic complexity: 53 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (in total 11), 5 states have internal predecessors, (11), 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 16:24:22,862 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 101 transitions. cyclomatic complexity: 53. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (in total 11), 5 states have internal predecessors, (11), 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 136 states and 288 transitions. Complement of second has 6 states. [2025-04-26 16:24:22,863 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 16:24:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (in total 11), 5 states have internal predecessors, (11), 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 16:24:22,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-04-26 16:24:22,864 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 8 letters. [2025-04-26 16:24:22,864 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:22,864 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 11 letters. Loop has 8 letters. [2025-04-26 16:24:22,864 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:22,864 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 16 letters. [2025-04-26 16:24:22,864 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:22,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 288 transitions. [2025-04-26 16:24:22,866 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:22,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 0 states and 0 transitions. [2025-04-26 16:24:22,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:22,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:22,866 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:22,867 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:22,867 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:22,867 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:22,867 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:22,867 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:22,867 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:22,867 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:22,867 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:22,872 INFO L201 PluginConnector]: Adding new model interleaved2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:22 BoogieIcfgContainer [2025-04-26 16:24:22,872 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:22,872 INFO L158 Benchmark]: Toolchain (without parser) took 1911.27ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 83.7MB in the beginning and 58.5MB in the end (delta: 25.3MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. [2025-04-26 16:24:22,872 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 155.2MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:22,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.32ms. Allocated memory is still 155.2MB. Free memory was 83.6MB in the beginning and 81.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:22,873 INFO L158 Benchmark]: Boogie Preprocessor took 22.60ms. Allocated memory is still 155.2MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:22,873 INFO L158 Benchmark]: RCFGBuilder took 184.37ms. Allocated memory is still 155.2MB. Free memory was 80.7MB in the beginning and 71.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:22,873 INFO L158 Benchmark]: BuchiAutomizer took 1665.43ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 71.6MB in the beginning and 58.5MB in the end (delta: 13.1MB). Peak memory consumption was 4.5MB. Max. memory is 8.0GB. [2025-04-26 16:24:22,874 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 0.18ms. Allocated memory is still 155.2MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.32ms. Allocated memory is still 155.2MB. Free memory was 83.6MB in the beginning and 81.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 22.60ms. Allocated memory is still 155.2MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 184.37ms. Allocated memory is still 155.2MB. Free memory was 80.7MB in the beginning and 71.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1665.43ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 71.6MB in the beginning and 58.5MB in the end (delta: 13.1MB). Peak memory consumption was 4.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 52 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 38 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function f1 and consists of 3 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:22,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...