/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/3_thr/aaron2_3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:26,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:26,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:26,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:26,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:26,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:26,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:26,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:26,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:26,722 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:26,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:26,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:26,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:26,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:26,723 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:26,723 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:26,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:26,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:26,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:26,969 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:26,970 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:26,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/aaron2_3.c.bpl [2025-04-26 16:24:26,973 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/aaron2_3.c.bpl' [2025-04-26 16:24:26,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:26,991 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:26,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:26,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:26,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:26,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,027 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:27,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:27,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:27,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:27,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:27,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,039 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:27,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:27,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:27,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:27,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:27,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,084 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 16:24:27,086 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 16:24:27,106 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:27,107 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:27,107 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:24:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:24:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:24:27,107 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:27,108 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 16:24:27,143 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:27,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:27,239 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:27,239 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:27,251 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:27,251 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:27,252 INFO L201 PluginConnector]: Adding new model aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:27 BoogieIcfgContainer [2025-04-26 16:24:27,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:27,254 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:27,254 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:27,258 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:27,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:27,259 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/2) ... [2025-04-26 16:24:27,260 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56353914 and model type aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:27, skipping insertion in model container [2025-04-26 16:24:27,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:27,260 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:27" (2/2) ... [2025-04-26 16:24:27,261 INFO L376 chiAutomizerObserver]: Analyzing ICFG aaron2_3.c.bpl [2025-04-26 16:24:27,305 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:24:27,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 83 flow [2025-04-26 16:24:27,359 INFO L116 PetriNetUnfolderBase]: 6/25 cut-off events. [2025-04-26 16:24:27,361 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:24:27,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 6/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 24. Up to 3 conditions per place. [2025-04-26 16:24:27,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 83 flow [2025-04-26 16:24:27,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 68 flow [2025-04-26 16:24:27,368 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 29 places, 25 transitions, 68 flow [2025-04-26 16:24:27,377 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:27,378 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:27,378 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:27,378 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:27,378 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:27,378 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:27,378 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:27,378 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:27,379 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:27,462 INFO L131 ngComponentsAnalysis]: Automaton has 53 accepting balls. 134 [2025-04-26 16:24:27,462 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:27,462 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:27,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:27,468 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:27,468 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:27,469 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 187 states, but on-demand construction may add more states [2025-04-26 16:24:27,481 INFO L131 ngComponentsAnalysis]: Automaton has 53 accepting balls. 134 [2025-04-26 16:24:27,482 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:27,482 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:27,482 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:27,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:27,486 INFO L752 eck$LassoCheckResult]: Stem: "[94] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L24-2: Formula: (<= 0 v_tx_1) InVars {tx=v_tx_1} OutVars{tx=v_tx_1} AuxVars[] AssignedVars[]" [2025-04-26 16:24:27,487 INFO L754 eck$LassoCheckResult]: Loop: "[76] L24-2-->L24: Formula: (<= v_y1_1 v_x_1) InVars {y1=v_y1_1, x=v_x_1} OutVars{y1=v_y1_1, x=v_x_1} AuxVars[] AssignedVars[]" "[78] L24-->L24-2: Formula: (= v_x_3 (+ v_tx_2 v_x_2 1)) InVars {tx=v_tx_2, x=v_x_3} OutVars{tx=v_tx_2, x=v_x_2} AuxVars[] AssignedVars[x]" [2025-04-26 16:24:27,492 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,493 INFO L85 PathProgramCache]: Analyzing trace with hash 3949, now seen corresponding path program 1 times [2025-04-26 16:24:27,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,498 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091491592] [2025-04-26 16:24:27,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,550 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,571 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,571 INFO L85 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 1 times [2025-04-26 16:24:27,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,571 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677640582] [2025-04-26 16:24:27,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,578 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,584 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash 3797423, now seen corresponding path program 1 times [2025-04-26 16:24:27,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,584 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695137869] [2025-04-26 16:24:27,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,589 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:27,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:27,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,647 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,647 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,647 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,648 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,648 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:27,648 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,648 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,648 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,648 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_3.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:24:27,648 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,648 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,704 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,704 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:27,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,708 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 16:24:27,709 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 16:24:27,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,724 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:27,725 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:27,731 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 16:24:27,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,735 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 16:24:27,736 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 16:24:27,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,754 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 16:24:27,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,756 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 16:24:27,757 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 16:24:27,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:27,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,886 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:27,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:24:27,892 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,892 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,892 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,892 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,893 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:27,893 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,893 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,893 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,893 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_3.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:24:27,893 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,893 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,939 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,942 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:27,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,945 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 16:24:27,946 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 16:24:27,948 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 16:24:27,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,967 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,967 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:27,984 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:24:27,985 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-04-26 16:24:27,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,006 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 16:24:28,007 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 16:24:28,008 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:28,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:24:28,026 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:28,027 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:28,027 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y1) = 2*x - 2*y1 + 1 Supporting invariants [1*tx >= 0] [2025-04-26 16:24:28,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:28,038 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:28,066 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:28,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:28,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:28,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:28,092 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:28,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:28,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:28,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:28,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:28,105 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:28,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:28,136 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 16:24:28,176 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 16:24:28,183 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 187 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:28,400 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 187 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 581 states and 2381 transitions. Complement of second has 6 states. [2025-04-26 16:24:28,401 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 16:24:28,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2025-04-26 16:24:28,409 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:24:28,413 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:28,413 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:28,413 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:28,413 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:24:28,413 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:28,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 581 states and 2381 transitions. [2025-04-26 16:24:28,436 INFO L131 ngComponentsAnalysis]: Automaton has 56 accepting balls. 126 [2025-04-26 16:24:28,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 581 states to 420 states and 1768 transitions. [2025-04-26 16:24:28,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2025-04-26 16:24:28,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2025-04-26 16:24:28,458 INFO L74 IsDeterministic]: Start isDeterministic. Operand 420 states and 1768 transitions. [2025-04-26 16:24:28,458 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:28,458 INFO L218 hiAutomatonCegarLoop]: Abstraction has 420 states and 1768 transitions. [2025-04-26 16:24:28,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states and 1768 transitions. [2025-04-26 16:24:28,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 324. [2025-04-26 16:24:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 324 states have (on average 4.407407407407407) internal successors, (in total 1428), 323 states have internal predecessors, (1428), 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 16:24:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 1428 transitions. [2025-04-26 16:24:28,510 INFO L240 hiAutomatonCegarLoop]: Abstraction has 324 states and 1428 transitions. [2025-04-26 16:24:28,510 INFO L438 stractBuchiCegarLoop]: Abstraction has 324 states and 1428 transitions. [2025-04-26 16:24:28,510 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:28,510 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states and 1428 transitions. [2025-04-26 16:24:28,517 INFO L131 ngComponentsAnalysis]: Automaton has 56 accepting balls. 126 [2025-04-26 16:24:28,517 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:28,517 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:28,518 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:28,518 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:28,518 INFO L752 eck$LassoCheckResult]: Stem: "[94] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[97] L10-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[80] $Ultimate##0-->L41-2: Formula: (<= 0 v_tx_6) InVars {tx=v_tx_6} OutVars{tx=v_tx_6} AuxVars[] AssignedVars[]" [2025-04-26 16:24:28,518 INFO L754 eck$LassoCheckResult]: Loop: "[82] L41-2-->L41: Formula: (<= v_y2_1 v_x_5) InVars {x=v_x_5, y2=v_y2_1} OutVars{x=v_x_5, y2=v_y2_1} AuxVars[] AssignedVars[]" "[84] L41-->L41-2: Formula: (= (+ v_tx_4 v_x_6 1) v_x_7) InVars {tx=v_tx_4, x=v_x_7} OutVars{tx=v_tx_4, x=v_x_6} AuxVars[] AssignedVars[x]" [2025-04-26 16:24:28,520 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:28,520 INFO L85 PathProgramCache]: Analyzing trace with hash 123212, now seen corresponding path program 1 times [2025-04-26 16:24:28,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:28,520 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549077009] [2025-04-26 16:24:28,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:28,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:28,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:28,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:28,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:28,526 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:28,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:28,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:28,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:28,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:28,531 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash 3587, now seen corresponding path program 1 times [2025-04-26 16:24:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:28,531 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823592803] [2025-04-26 16:24:28,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:28,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:28,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:28,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:28,537 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:28,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:28,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:28,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:28,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:28,540 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:28,540 INFO L85 PathProgramCache]: Analyzing trace with hash 118409358, now seen corresponding path program 1 times [2025-04-26 16:24:28,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:28,540 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400917511] [2025-04-26 16:24:28,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:28,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:28,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:28,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:28,544 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:28,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:28,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:28,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:28,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:28,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:28,595 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:28,595 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:28,595 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:28,595 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:28,595 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:28,595 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,595 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:28,595 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:28,595 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_3.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:24:28,595 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:28,595 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:28,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,652 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:28,652 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:28,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,656 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 16:24:28,657 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 16:24:28,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:28,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,670 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:28,670 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:28,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:28,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,683 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 16:24:28,685 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 16:24:28,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:28,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,698 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:28,698 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:28,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:24:28,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,706 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 16:24:28,707 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 16:24:28,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:28,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,726 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 16:24:28,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,729 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 16:24:28,729 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 16:24:28,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:28,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:28,860 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:28,865 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 16:24:28,866 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:28,866 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:28,866 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:28,866 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:28,866 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:28,866 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,866 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:28,866 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:28,866 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_3.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:24:28,866 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:28,866 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:28,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:28,916 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:28,916 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:28,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,918 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 16:24:28,919 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 16:24:28,921 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 16:24:28,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:28,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:28,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:28,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:28,933 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:28,933 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:28,935 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:28,940 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 16:24:28,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,943 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 16:24:28,944 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 16:24:28,944 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 16:24:28,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:28,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:28,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:28,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:28,957 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:28,957 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:28,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:28,968 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:24:28,968 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-04-26 16:24:28,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:28,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:28,970 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 16:24:28,971 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 16:24:28,973 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:28,991 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 16:24:28,991 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:28,991 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:28,991 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y2) = 2*x - 2*y2 + 1 Supporting invariants [1*tx >= 0] [2025-04-26 16:24:28,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:24:28,999 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:29,022 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:29,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:29,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:29,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:29,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:29,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:29,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:29,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:29,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:29,042 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:29,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:29,059 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 16:24:29,059 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 16:24:29,060 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 324 states and 1428 transitions. cyclomatic complexity: 1177 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:29,190 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 324 states and 1428 transitions. cyclomatic complexity: 1177. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1265 states and 6353 transitions. Complement of second has 6 states. [2025-04-26 16:24:29,191 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 16:24:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:29,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2025-04-26 16:24:29,192 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 71 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:29,192 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:29,192 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 71 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:29,192 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:29,192 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 71 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:24:29,192 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:29,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1265 states and 6353 transitions. [2025-04-26 16:24:29,215 INFO L131 ngComponentsAnalysis]: Automaton has 43 accepting balls. 86 [2025-04-26 16:24:29,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1265 states to 768 states and 3947 transitions. [2025-04-26 16:24:29,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2025-04-26 16:24:29,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 345 [2025-04-26 16:24:29,232 INFO L74 IsDeterministic]: Start isDeterministic. Operand 768 states and 3947 transitions. [2025-04-26 16:24:29,232 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:29,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 768 states and 3947 transitions. [2025-04-26 16:24:29,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states and 3947 transitions. [2025-04-26 16:24:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 612. [2025-04-26 16:24:29,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 612 states have (on average 5.388888888888889) internal successors, (in total 3298), 611 states have internal predecessors, (3298), 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 16:24:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 3298 transitions. [2025-04-26 16:24:29,274 INFO L240 hiAutomatonCegarLoop]: Abstraction has 612 states and 3298 transitions. [2025-04-26 16:24:29,274 INFO L438 stractBuchiCegarLoop]: Abstraction has 612 states and 3298 transitions. [2025-04-26 16:24:29,274 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:29,274 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 612 states and 3298 transitions. [2025-04-26 16:24:29,279 INFO L131 ngComponentsAnalysis]: Automaton has 43 accepting balls. 86 [2025-04-26 16:24:29,279 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:29,279 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:29,280 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:24:29,280 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:29,280 INFO L752 eck$LassoCheckResult]: Stem: "[94] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[97] L10-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[100] L11-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[86] $Ultimate##0-->L58-2: Formula: (<= 0 v_tx_9) InVars {tx=v_tx_9} OutVars{tx=v_tx_9} AuxVars[] AssignedVars[]" [2025-04-26 16:24:29,281 INFO L754 eck$LassoCheckResult]: Loop: "[88] L58-2-->L58: Formula: (<= v_y3_1 v_x_9) InVars {x=v_x_9, y3=v_y3_1} OutVars{x=v_x_9, y3=v_y3_1} AuxVars[] AssignedVars[]" "[90] L58-->L58-2: Formula: (= v_x_11 (+ v_tx_7 v_x_10 1)) InVars {tx=v_tx_7, x=v_x_11} OutVars{tx=v_tx_7, x=v_x_10} AuxVars[] AssignedVars[x]" [2025-04-26 16:24:29,281 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash 3820278, now seen corresponding path program 1 times [2025-04-26 16:24:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:29,281 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387349531] [2025-04-26 16:24:29,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:29,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:29,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:29,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:29,286 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:29,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:29,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:29,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:29,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:29,293 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:29,293 INFO L85 PathProgramCache]: Analyzing trace with hash 3779, now seen corresponding path program 1 times [2025-04-26 16:24:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:29,294 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853184777] [2025-04-26 16:24:29,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:29,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:29,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:29,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:29,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:29,298 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:29,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:29,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:29,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:29,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:29,302 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash -623677320, now seen corresponding path program 1 times [2025-04-26 16:24:29,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:29,302 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466294174] [2025-04-26 16:24:29,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:29,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:29,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:29,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:29,309 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:29,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:29,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:29,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:29,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:29,382 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:29,382 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:29,382 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:29,382 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:29,382 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:29,382 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,382 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:29,382 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:29,382 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_3.c.bpl_petrified1_Iteration3_Lasso [2025-04-26 16:24:29,382 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:29,382 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:29,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,464 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:29,465 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:29,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:29,475 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 16:24:29,476 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 16:24:29,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:29,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:29,488 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:29,488 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:29,494 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 16:24:29,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:29,496 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 16:24:29,498 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 16:24:29,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:29,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:29,518 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 16:24:29,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:29,521 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 16:24:29,523 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 16:24:29,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:29,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:29,644 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:29,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:29,650 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:29,650 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:29,650 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:29,650 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:29,650 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:29,650 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,650 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:29,650 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:29,650 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_3.c.bpl_petrified1_Iteration3_Lasso [2025-04-26 16:24:29,650 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:29,650 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:29,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:29,723 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:29,723 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:29,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:29,728 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 16:24:29,729 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 16:24:29,729 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 16:24:29,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:29,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:29,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:29,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:29,741 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:29,741 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:29,744 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:29,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:29,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:29,752 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 16:24:29,754 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 16:24:29,755 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 16:24:29,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:29,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:29,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:29,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:29,768 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:29,768 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:29,774 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:29,781 INFO L436 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2025-04-26 16:24:29,782 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-04-26 16:24:29,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:29,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:29,784 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 16:24:29,786 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 16:24:29,787 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:29,804 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 16:24:29,804 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:29,804 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:29,804 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y3) = 2*x - 2*y3 + 1 Supporting invariants [1*tx >= 0] [2025-04-26 16:24:29,810 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 16:24:29,812 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:29,841 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:29,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:29,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:29,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:29,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:29,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:29,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:29,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:29,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:29,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:29,859 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:29,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:29,872 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 16:24:29,873 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 16:24:29,873 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 612 states and 3298 transitions. cyclomatic complexity: 2776 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:29,991 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 612 states and 3298 transitions. cyclomatic complexity: 2776. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 2222 states and 13527 transitions. Complement of second has 6 states. [2025-04-26 16:24:29,992 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 16:24:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:29,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2025-04-26 16:24:29,993 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 68 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:29,993 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:29,993 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 68 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:24:29,993 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:29,993 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 68 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:24:29,994 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:29,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2222 states and 13527 transitions. [2025-04-26 16:24:30,029 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:30,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2222 states to 0 states and 0 transitions. [2025-04-26 16:24:30,029 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:30,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:30,029 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:30,029 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:30,029 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:30,030 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:30,030 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:30,030 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:24:30,030 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:30,030 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:30,030 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:30,035 INFO L201 PluginConnector]: Adding new model aaron2_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:30 BoogieIcfgContainer [2025-04-26 16:24:30,035 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:30,036 INFO L158 Benchmark]: Toolchain (without parser) took 3044.79ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 87.1MB in the beginning and 55.6MB in the end (delta: 31.5MB). Peak memory consumption was 39.7MB. Max. memory is 8.0GB. [2025-04-26 16:24:30,036 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.75ms. Allocated memory is still 159.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:30,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.47ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 85.2MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:24:30,036 INFO L158 Benchmark]: Boogie Preprocessor took 25.68ms. Allocated memory is still 159.4MB. Free memory was 85.2MB in the beginning and 84.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:30,036 INFO L158 Benchmark]: RCFGBuilder took 195.93ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 75.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:30,036 INFO L158 Benchmark]: BuchiAutomizer took 2780.90ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 75.0MB in the beginning and 55.6MB in the end (delta: 19.5MB). Peak memory consumption was 27.1MB. Max. memory is 8.0GB. [2025-04-26 16:24:30,037 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 0.75ms. Allocated memory is still 159.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.47ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 85.2MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.68ms. Allocated memory is still 159.4MB. Free memory was 85.2MB in the beginning and 84.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 195.93ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 75.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2780.90ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 75.0MB in the beginning and 55.6MB in the end (delta: 19.5MB). Peak memory consumption was 27.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 252 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 54 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 83ms VariablesStem: 1 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 + -2 * y1 and consists of 4 locations. One deterministic module has affine ranking function -2 * y2 + 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * y3 + 2 * x + 1 and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:30,049 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...