/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/switch.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:25,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:25,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:25,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:25,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:25,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:25,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:25,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:25,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:25,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:25,528 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:25,529 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:25,529 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:25,529 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:25,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:25,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:25,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:25,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:25,531 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:25,531 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:25,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:25,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:25,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:25,792 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:25,793 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:25,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/switch.c.bpl [2025-04-26 16:24:25,794 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/switch.c.bpl' [2025-04-26 16:24:25,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:25,811 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:25,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:25,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:25,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:25,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,847 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:25,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:25,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:25,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:25,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:25,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,861 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:25,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:25,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:25,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:25,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,907 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 16:24:25,912 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 16:24:25,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:25,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:25,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:25,930 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 16:24:25,968 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:25,970 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:26,045 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:26,045 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:26,054 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:26,054 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:26,054 INFO L201 PluginConnector]: Adding new model switch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:26 BoogieIcfgContainer [2025-04-26 16:24:26,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:26,055 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:26,055 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:26,062 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:26,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:26,063 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "switch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/2) ... [2025-04-26 16:24:26,065 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72d45b8d and model type switch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:26, skipping insertion in model container [2025-04-26 16:24:26,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:26,065 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "switch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:26" (2/2) ... [2025-04-26 16:24:26,066 INFO L376 chiAutomizerObserver]: Analyzing ICFG switch.c.bpl [2025-04-26 16:24:26,116 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:24:26,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 25 transitions, 64 flow [2025-04-26 16:24:26,174 INFO L116 PetriNetUnfolderBase]: 4/21 cut-off events. [2025-04-26 16:24:26,175 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:24:26,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 4/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2025-04-26 16:24:26,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 25 transitions, 64 flow [2025-04-26 16:24:26,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 21 transitions, 54 flow [2025-04-26 16:24:26,183 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 24 places, 21 transitions, 54 flow [2025-04-26 16:24:26,192 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:26,192 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:26,192 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:26,192 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:26,192 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:26,192 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:26,192 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:26,193 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:26,194 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:26,224 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 44 [2025-04-26 16:24:26,224 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,224 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,227 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:24:26,227 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:26,227 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:26,227 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 61 states, but on-demand construction may add more states [2025-04-26 16:24:26,229 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 44 [2025-04-26 16:24:26,230 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,230 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,230 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:24:26,230 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:26,234 INFO L752 eck$LassoCheckResult]: Stem: "[78] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-04-26 16:24:26,234 INFO L754 eck$LassoCheckResult]: Loop: "[58] L21-->L23: Formula: (< v_x2_1 v_w_1) InVars {x2=v_x2_1, w=v_w_1} OutVars{x2=v_x2_1, w=v_w_1} AuxVars[] AssignedVars[]" "[60] L23-->L21: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-04-26 16:24:26,237 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash 109, now seen corresponding path program 1 times [2025-04-26 16:24:26,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,243 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423646492] [2025-04-26 16:24:26,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:26,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:26,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,294 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:26,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:26,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,313 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2819, now seen corresponding path program 1 times [2025-04-26 16:24:26,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,315 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379599686] [2025-04-26 16:24:26,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,327 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,338 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,338 INFO L85 PathProgramCache]: Analyzing trace with hash 106607, now seen corresponding path program 1 times [2025-04-26 16:24:26,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,338 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003523832] [2025-04-26 16:24:26,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,344 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,397 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,399 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,399 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,400 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,400 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:26,400 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,400 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,401 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,401 INFO L132 ssoRankerPreferences]: Filename of dumped script: switch.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:26,401 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,402 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,466 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,466 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:26,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,469 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 16:24:26,470 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 16:24:26,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:26,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,489 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 16:24:26,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,491 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 16:24:26,492 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 16:24:26,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:26,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,558 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:26,562 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 16:24:26,562 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,562 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,562 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,562 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,562 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:26,562 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,562 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,562 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,562 INFO L132 ssoRankerPreferences]: Filename of dumped script: switch.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:26,562 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,562 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,586 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,589 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:26,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,592 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 16:24:26,593 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 16:24:26,594 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 16:24:26,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:26,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:26,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:26,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:26,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:26,609 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:26,609 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:26,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:26,615 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:26,615 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:26,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,641 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 16:24:26,641 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 16:24:26,659 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:26,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:24:26,663 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:26,663 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:26,664 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(w, x2) = 1*w - 1*x2 Supporting invariants [] [2025-04-26 16:24:26,669 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 16:24:26,672 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:26,696 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:26,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:26,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:26,707 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:26,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:26,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:26,723 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:26,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:26,748 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 16:24:26,797 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 16:24:26,800 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 61 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 16:24:26,904 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 61 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 158 states and 376 transitions. Complement of second has 6 states. [2025-04-26 16:24:26,909 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 16:24:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 16:24:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2025-04-26 16:24:26,921 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 1 letters. Loop has 2 letters. [2025-04-26 16:24:26,921 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,921 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:26,922 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,922 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 1 letters. Loop has 4 letters. [2025-04-26 16:24:26,922 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 376 transitions. [2025-04-26 16:24:26,932 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 36 [2025-04-26 16:24:26,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 91 states and 224 transitions. [2025-04-26 16:24:26,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2025-04-26 16:24:26,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2025-04-26 16:24:26,937 INFO L74 IsDeterministic]: Start isDeterministic. Operand 91 states and 224 transitions. [2025-04-26 16:24:26,937 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:26,937 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 224 transitions. [2025-04-26 16:24:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 224 transitions. [2025-04-26 16:24:26,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 71. [2025-04-26 16:24:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 2.5211267605633805) internal successors, (in total 179), 70 states have internal predecessors, (179), 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 16:24:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 179 transitions. [2025-04-26 16:24:26,959 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 179 transitions. [2025-04-26 16:24:26,959 INFO L438 stractBuchiCegarLoop]: Abstraction has 71 states and 179 transitions. [2025-04-26 16:24:26,959 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:26,959 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 179 transitions. [2025-04-26 16:24:26,960 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 36 [2025-04-26 16:24:26,960 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,960 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,960 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:26,960 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:24:26,961 INFO L752 eck$LassoCheckResult]: Stem: "[78] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[75] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[62] $Ultimate##0-->L39-1: Formula: (and (= v_f_2 1) (< 0 v_d_3)) InVars {d=v_d_3, f=v_f_2} OutVars{d=v_d_3, f=v_f_2} AuxVars[] AssignedVars[]" [2025-04-26 16:24:26,961 INFO L754 eck$LassoCheckResult]: Loop: "[64] L39-1-->L34: Formula: (< 0 v_f_4) InVars {f=v_f_4} OutVars{f=v_f_4} AuxVars[] AssignedVars[]" "[66] L34-->L35: Formula: (= v_x1_5 (+ v_x1_6 v_d_4)) InVars {x1=v_x1_6, d=v_d_4} OutVars{x1=v_x1_5, d=v_d_4} AuxVars[] AssignedVars[x1]" "[68] L35-->L35-2: Formula: (< v_z_2 v_x1_2) InVars {x1=v_x1_2, z=v_z_2} OutVars{x1=v_x1_2, z=v_z_2} AuxVars[] AssignedVars[]" "[71] L35-2-->L39-1: Formula: (< v_x1_4 v_y_2) InVars {y=v_y_2, x1=v_x1_4} OutVars{y=v_y_2, x1=v_x1_4} AuxVars[] AssignedVars[]" [2025-04-26 16:24:26,961 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,961 INFO L85 PathProgramCache]: Analyzing trace with hash 107136, now seen corresponding path program 1 times [2025-04-26 16:24:26,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,962 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30333310] [2025-04-26 16:24:26,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,966 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,973 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2895750, now seen corresponding path program 1 times [2025-04-26 16:24:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,973 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799372090] [2025-04-26 16:24:26,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:26,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:26,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,977 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:26,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:26,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,983 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,983 INFO L85 PathProgramCache]: Analyzing trace with hash 160070277, now seen corresponding path program 1 times [2025-04-26 16:24:26,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,983 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127267909] [2025-04-26 16:24:26,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:26,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:26,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,990 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:26,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:26,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,058 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,059 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,059 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,059 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,059 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:27,059 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,059 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,059 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,059 INFO L132 ssoRankerPreferences]: Filename of dumped script: switch.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:24:27,059 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,059 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,133 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,133 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:27,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,137 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 16:24:27,139 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 16:24:27,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,154 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:27,154 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:27,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,162 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 16:24:27,163 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 16:24:27,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,178 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:27,178 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:27,184 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 16:24:27,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,186 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 16:24:27,187 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 16:24:27,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,200 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:27,200 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork1_thidvar0=0} Honda state: {thread1Thread1of1ForFork1_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:27,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,208 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 16:24:27,209 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 16:24:27,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,227 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:27,228 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f=1} Honda state: {f=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:27,233 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 16:24:27,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,235 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 16:24:27,236 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 16:24:27,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,254 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 16:24:27,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,256 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 16:24:27,256 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 16:24:27,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:27,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,456 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:27,463 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 16:24:27,463 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,463 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,463 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,463 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,463 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:27,463 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,463 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,463 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,463 INFO L132 ssoRankerPreferences]: Filename of dumped script: switch.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:24:27,463 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,463 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,533 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,533 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:27,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,535 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 16:24:27,537 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 16:24:27,538 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 16:24:27,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,551 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,551 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,554 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:27,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,563 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 16:24:27,563 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 16:24:27,565 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 16:24:27,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,577 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,577 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,580 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:27,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:24:27,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,613 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 16:24:27,614 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 16:24:27,615 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 16:24:27,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,627 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,627 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,631 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:27,637 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 16:24:27,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,639 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 16:24:27,640 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 16:24:27,641 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 16:24:27,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,653 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,653 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,656 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:27,662 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 16:24:27,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,665 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 16:24:27,665 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 16:24:27,667 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 16:24:27,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,681 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,681 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:27,698 INFO L436 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2025-04-26 16:24:27,698 INFO L437 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:24:27,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,700 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 16:24:27,702 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 16:24:27,703 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:27,719 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 16:24:27,720 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:27,720 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:27,720 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, d, x1) = 1*y - 1*d - 1*x1 Supporting invariants [1*d - 1 >= 0] [2025-04-26 16:24:27,725 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 16:24:27,733 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:27,750 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,779 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,827 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 16:24:27,827 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 16:24:27,828 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 179 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,883 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 179 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 219 states and 511 transitions. Complement of second has 7 states. [2025-04-26 16:24:27,883 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 16:24:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-04-26 16:24:27,884 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:24:27,884 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,884 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 7 letters. Loop has 4 letters. [2025-04-26 16:24:27,884 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,884 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 8 letters. [2025-04-26 16:24:27,884 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 511 transitions. [2025-04-26 16:24:27,889 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 54 [2025-04-26 16:24:27,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 511 transitions. [2025-04-26 16:24:27,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2025-04-26 16:24:27,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114 [2025-04-26 16:24:27,893 INFO L74 IsDeterministic]: Start isDeterministic. Operand 219 states and 511 transitions. [2025-04-26 16:24:27,893 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:27,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 219 states and 511 transitions. [2025-04-26 16:24:27,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 511 transitions. [2025-04-26 16:24:27,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 175. [2025-04-26 16:24:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 2.4285714285714284) internal successors, (in total 425), 174 states have internal predecessors, (425), 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 16:24:27,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 425 transitions. [2025-04-26 16:24:27,903 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 425 transitions. [2025-04-26 16:24:27,903 INFO L438 stractBuchiCegarLoop]: Abstraction has 175 states and 425 transitions. [2025-04-26 16:24:27,903 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:27,903 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 425 transitions. [2025-04-26 16:24:27,904 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 54 [2025-04-26 16:24:27,904 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:27,904 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:27,905 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:24:27,905 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:27,905 INFO L752 eck$LassoCheckResult]: Stem: "[78] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[75] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[62] $Ultimate##0-->L39-1: Formula: (and (= v_f_2 1) (< 0 v_d_3)) InVars {d=v_d_3, f=v_f_2} OutVars{d=v_d_3, f=v_f_2} AuxVars[] AssignedVars[]" "[64] L39-1-->L34: Formula: (< 0 v_f_4) InVars {f=v_f_4} OutVars{f=v_f_4} AuxVars[] AssignedVars[]" [2025-04-26 16:24:27,905 INFO L754 eck$LassoCheckResult]: Loop: "[66] L34-->L35: Formula: (= v_x1_5 (+ v_x1_6 v_d_4)) InVars {x1=v_x1_6, d=v_d_4} OutVars{x1=v_x1_5, d=v_d_4} AuxVars[] AssignedVars[x1]" "[68] L35-->L35-2: Formula: (< v_z_2 v_x1_2) InVars {x1=v_x1_2, z=v_z_2} OutVars{x1=v_x1_2, z=v_z_2} AuxVars[] AssignedVars[]" "[70] L35-2-->L41: Formula: (<= v_y_1 v_x1_3) InVars {y=v_y_1, x1=v_x1_3} OutVars{y=v_y_1, x1=v_x1_3} AuxVars[] AssignedVars[]" "[72] L41-->L39-1: Formula: (= v_f_3 0) InVars {} OutVars{f=v_f_3} AuxVars[] AssignedVars[f]" "[64] L39-1-->L34: Formula: (< 0 v_f_4) InVars {f=v_f_4} OutVars{f=v_f_4} AuxVars[] AssignedVars[]" [2025-04-26 16:24:27,905 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,905 INFO L85 PathProgramCache]: Analyzing trace with hash 3321280, now seen corresponding path program 1 times [2025-04-26 16:24:27,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,905 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501611439] [2025-04-26 16:24:27,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,908 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,911 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,911 INFO L85 PathProgramCache]: Analyzing trace with hash 91676891, now seen corresponding path program 1 times [2025-04-26 16:24:27,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,911 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326649115] [2025-04-26 16:24:27,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,937 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 16:24:27,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:24:27,938 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326649115] [2025-04-26 16:24:27,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326649115] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:24:27,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:24:27,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:24:27,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334940342] [2025-04-26 16:24:27,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:24:27,941 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-04-26 16:24:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:24:27,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:24:27,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:24:27,943 INFO L87 Difference]: Start difference. First operand 175 states and 425 transitions. cyclomatic complexity: 269 Second operand has 3 states, 2 states have (on average 2.5) 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 16:24:27,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:24:27,960 INFO L93 Difference]: Finished difference Result 249 states and 562 transitions. [2025-04-26 16:24:27,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 562 transitions. [2025-04-26 16:24:27,963 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2025-04-26 16:24:27,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 71 states and 153 transitions. [2025-04-26 16:24:27,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2025-04-26 16:24:27,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2025-04-26 16:24:27,965 INFO L74 IsDeterministic]: Start isDeterministic. Operand 71 states and 153 transitions. [2025-04-26 16:24:27,965 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:27,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71 states and 153 transitions. [2025-04-26 16:24:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 153 transitions. [2025-04-26 16:24:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-04-26 16:24:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 2.1549295774647885) internal successors, (in total 153), 70 states have internal predecessors, (153), 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 16:24:27,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 153 transitions. [2025-04-26 16:24:27,968 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 153 transitions. [2025-04-26 16:24:27,968 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:24:27,969 INFO L438 stractBuchiCegarLoop]: Abstraction has 71 states and 153 transitions. [2025-04-26 16:24:27,969 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:24:27,969 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 153 transitions. [2025-04-26 16:24:27,969 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2025-04-26 16:24:27,969 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:27,969 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:27,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:27,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:24:27,970 INFO L752 eck$LassoCheckResult]: Stem: "[78] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[57] L21-->L25: Formula: (<= v_w_2 v_x2_4) InVars {x2=v_x2_4, w=v_w_2} OutVars{x2=v_x2_4, w=v_w_2} AuxVars[] AssignedVars[]" "[75] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[62] $Ultimate##0-->L39-1: Formula: (and (= v_f_2 1) (< 0 v_d_3)) InVars {d=v_d_3, f=v_f_2} OutVars{d=v_d_3, f=v_f_2} AuxVars[] AssignedVars[]" "[59] L25-->thread1FINAL: Formula: (= (+ v_d_2 v_d_1) 0) InVars {d=v_d_2} OutVars{d=v_d_1} AuxVars[] AssignedVars[d]" [2025-04-26 16:24:27,970 INFO L754 eck$LassoCheckResult]: Loop: "[64] L39-1-->L34: Formula: (< 0 v_f_4) InVars {f=v_f_4} OutVars{f=v_f_4} AuxVars[] AssignedVars[]" "[66] L34-->L35: Formula: (= v_x1_5 (+ v_x1_6 v_d_4)) InVars {x1=v_x1_6, d=v_d_4} OutVars{x1=v_x1_5, d=v_d_4} AuxVars[] AssignedVars[x1]" "[68] L35-->L35-2: Formula: (< v_z_2 v_x1_2) InVars {x1=v_x1_2, z=v_z_2} OutVars{x1=v_x1_2, z=v_z_2} AuxVars[] AssignedVars[]" "[71] L35-2-->L39-1: Formula: (< v_x1_4 v_y_2) InVars {y=v_y_2, x1=v_x1_4} OutVars{y=v_y_2, x1=v_x1_4} AuxVars[] AssignedVars[]" [2025-04-26 16:24:27,970 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,970 INFO L85 PathProgramCache]: Analyzing trace with hash 102435932, now seen corresponding path program 1 times [2025-04-26 16:24:27,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,970 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994904933] [2025-04-26 16:24:27,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,979 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,982 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,982 INFO L85 PathProgramCache]: Analyzing trace with hash 2895750, now seen corresponding path program 2 times [2025-04-26 16:24:27,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,982 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871118089] [2025-04-26 16:24:27,982 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:24:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,984 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,985 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,985 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:24:27,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,985 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,988 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash 786667105, now seen corresponding path program 1 times [2025-04-26 16:24:27,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,988 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347015638] [2025-04-26 16:24:27,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:24:27,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:24:27,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,992 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:24:27,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:24:27,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:28,060 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:28,061 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:28,061 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:28,061 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:28,061 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:28,061 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,061 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:28,061 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:28,061 INFO L132 ssoRankerPreferences]: Filename of dumped script: switch.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:24:28,061 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:28,061 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:28,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,136 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:28,136 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:28,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,138 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:28,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:24:28,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:28,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,151 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:28,151 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork1_thidvar0=0} Honda state: {thread1Thread1of1ForFork1_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:28,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-04-26 16:24:28,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,158 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:28,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:24:28,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:28,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,171 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:28,171 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:28,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:28,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,179 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:28,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:24:28,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:28,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:24:28,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,200 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:28,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 16:24:28,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:28,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,412 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:28,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:24:28,419 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:28,419 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:28,419 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:28,419 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:28,419 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:28,419 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,419 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:28,419 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:28,419 INFO L132 ssoRankerPreferences]: Filename of dumped script: switch.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:24:28,419 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:28,419 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:28,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,493 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:28,493 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:28,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,495 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:28,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 16:24:28,500 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 16:24:28,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:28,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:28,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:28,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:28,514 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:28,514 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:28,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:28,525 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:28,525 INFO L437 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:28,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,527 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:28,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 16:24:28,539 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:28,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:24:28,555 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:28,555 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:28,555 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(d, z, x1) = 1*d - 1*z + 1*x1 Supporting invariants [-1*d - 1 >= 0] [2025-04-26 16:24:28,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 16:24:28,563 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:28,579 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:28,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:28,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:28,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:28,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:28,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:28,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:28,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:28,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:28,615 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:28,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:28,671 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 16:24:28,672 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2025-04-26 16:24:28,672 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 153 transitions. cyclomatic complexity: 94 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (in total 9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:28,716 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 153 transitions. cyclomatic complexity: 94. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (in total 9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 102 states and 215 transitions. Complement of second has 7 states. [2025-04-26 16:24:28,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (in total 9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2025-04-26 16:24:28,717 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:24:28,717 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:28,717 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 9 letters. Loop has 4 letters. [2025-04-26 16:24:28,717 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:28,718 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 8 letters. [2025-04-26 16:24:28,718 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:28,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 215 transitions. [2025-04-26 16:24:28,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:28,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 0 states and 0 transitions. [2025-04-26 16:24:28,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:28,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:28,719 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:28,719 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:28,719 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:28,719 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:28,719 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:28,719 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:24:28,719 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:28,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:28,719 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:28,729 INFO L201 PluginConnector]: Adding new model switch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:28 BoogieIcfgContainer [2025-04-26 16:24:28,730 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:28,730 INFO L158 Benchmark]: Toolchain (without parser) took 2918.72ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 86.4MB in the beginning and 95.0MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:28,731 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:28,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.42ms. Allocated memory is still 159.4MB. Free memory was 86.4MB in the beginning and 84.5MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:24:28,731 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 83.4MB in the end (delta: 997.7kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:28,731 INFO L158 Benchmark]: RCFGBuilder took 177.30ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 72.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:24:28,731 INFO L158 Benchmark]: BuchiAutomizer took 2674.37ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 72.9MB in the beginning and 95.0MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:28,732 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 0.19ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.42ms. Allocated memory is still 159.4MB. Free memory was 86.4MB in the beginning and 84.5MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 83.4MB in the end (delta: 997.7kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 177.30ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 72.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2674.37ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 72.9MB in the beginning and 95.0MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 64 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, 89 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 78 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital30 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf95 smp100 dnf100 smp100 tf103 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function w + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * d + -1 * x1 + y and consists of 4 locations. One deterministic module has affine ranking function -1 * z + x1 + d and consists of 5 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 16:24:28,746 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...