/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 --buchiautomizer.automaton.type.for.concurrent.programs PARTIAL_ORDER_BA -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/aaron2_2.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:48:34,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:48:34,366 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:48:34,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:48:34,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:48:34,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:48:34,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:48:34,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:48:34,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:48:34,393 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:48:34,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:48:34,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:48:34,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:48:34,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:48:34,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:48:34,395 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:48:34,395 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:48:34,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:48:34,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:48:34,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:48:34,617 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:48:34,618 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:48:34,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/aaron2_2.c.bpl [2025-02-17 22:48:34,619 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/aaron2_2.c.bpl' [2025-02-17 22:48:34,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:48:34,633 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:48:34,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:48:34,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:48:34,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:48:34,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,651 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:48:34,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:48:34,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:48:34,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:48:34,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:48:34,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:48:34,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:48:34,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:48:34,666 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:48:34,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/1) ... [2025-02-17 22:48:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:34,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:34,695 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) [2025-02-17 22:48:34,698 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 [2025-02-17 22:48:34,718 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:48:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:48:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:48:34,719 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:48:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:48:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:48:34,719 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:48:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:48:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:48:34,720 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:48:34,752 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:48:34,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:48:34,800 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:48:34,800 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:48:34,809 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:48:34,810 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:48:34,810 INFO L201 PluginConnector]: Adding new model aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:48:34 BoogieIcfgContainer [2025-02-17 22:48:34,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:48:34,811 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:48:34,811 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:48:34,816 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:48:34,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:48:34,816 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:48:34" (1/2) ... [2025-02-17 22:48:34,817 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ad33a45 and model type aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:48:34, skipping insertion in model container [2025-02-17 22:48:34,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:48:34,817 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:48:34" (2/2) ... [2025-02-17 22:48:34,818 INFO L363 chiAutomizerObserver]: Analyzing ICFG aaron2_2.c.bpl [2025-02-17 22:48:34,859 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-17 22:48:34,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 22 places, 21 transitions, 56 flow [2025-02-17 22:48:34,919 INFO L124 PetriNetUnfolderBase]: 4/17 cut-off events. [2025-02-17 22:48:34,924 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-17 22:48:34,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 4/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 15. Up to 3 conditions per place. [2025-02-17 22:48:34,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 21 transitions, 56 flow [2025-02-17 22:48:34,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 17 transitions, 46 flow [2025-02-17 22:48:34,936 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:48:35,065 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:48:35,066 INFO L101 AmpleReduction]: Number of pruned transitions: 10, Number of non-trivial ample sets: 16 [2025-02-17 22:48:35,066 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 9 [2025-02-17 22:48:35,071 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:48:35,071 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:48:35,071 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:48:35,071 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:48:35,071 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:48:35,072 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:48:35,072 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:48:35,072 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:48:35,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:35,083 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-02-17 22:48:35,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:48:35,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:48:35,089 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:48:35,090 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:48:35,090 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:48:35,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:35,091 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-02-17 22:48:35,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:48:35,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:48:35,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:48:35,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:48:35,096 INFO L752 eck$LassoCheckResult]: Stem: "[64] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[50] $Ultimate##0-->L22-2: Formula: (<= 0 v_tx_1) InVars {tx=v_tx_1} OutVars{tx=v_tx_1} AuxVars[] AssignedVars[]" [2025-02-17 22:48:35,096 INFO L754 eck$LassoCheckResult]: Loop: "[52] L22-2-->L22: 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[]" "[54] L22-->L22-2: 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]" [2025-02-17 22:48:35,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:35,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2995, now seen corresponding path program 1 times [2025-02-17 22:48:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:35,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855739043] [2025-02-17 22:48:35,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:35,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,150 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:35,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:35,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2627, now seen corresponding path program 1 times [2025-02-17 22:48:35,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:35,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666574219] [2025-02-17 22:48:35,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:35,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:35,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,175 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:35,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:35,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2879861, now seen corresponding path program 1 times [2025-02-17 22:48:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036027251] [2025-02-17 22:48:35,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:35,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:35,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:35,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:35,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,191 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:35,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:35,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:35,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:35,247 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:35,249 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:35,249 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:35,249 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:35,250 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:48:35,250 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:35,250 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:35,250 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:35,251 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration1_Lasso [2025-02-17 22:48:35,251 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:35,252 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:35,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:35,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:35,315 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:35,316 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:48:35,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:35,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:35,322 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) [2025-02-17 22:48:35,323 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 [2025-02-17 22:48:35,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:48:35,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:35,348 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 [2025-02-17 22:48:35,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:35,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:35,350 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) [2025-02-17 22:48:35,352 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 [2025-02-17 22:48:35,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:48:35,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:35,487 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:48:35,493 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 [2025-02-17 22:48:35,493 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:35,493 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:35,493 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:35,493 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:35,493 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:48:35,493 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:35,493 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:35,493 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:35,494 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration1_Lasso [2025-02-17 22:48:35,494 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:35,494 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:35,495 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:35,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:35,543 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:35,566 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:48:35,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:35,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:35,573 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) [2025-02-17 22:48:35,574 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 [2025-02-17 22:48:35,575 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 [2025-02-17 22:48:35,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:35,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:35,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:35,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:35,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:48:35,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:48:35,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:48:35,616 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-17 22:48:35,616 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-02-17 22:48:35,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:35,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:35,621 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) [2025-02-17 22:48:35,622 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 [2025-02-17 22:48:35,623 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:48:35,636 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:48:35,637 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:48:35,637 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y1) = 2*x - 2*y1 + 1 Supporting invariants [1*tx >= 0] [2025-02-17 22:48:35,643 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 [2025-02-17 22:48:35,651 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:48:35,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:35,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:35,703 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:48:35,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:35,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:48:35,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:35,717 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:48:35,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:48:35,782 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 [2025-02-17 22:48:35,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 31 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:35,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 31 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 202 transitions. Complement of second has 6 states. [2025-02-17 22:48:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:48:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:35,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-02-17 22:48:35,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:48:35,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:35,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:48:35,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:35,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:48:35,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:35,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 202 transitions. [2025-02-17 22:48:35,944 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2025-02-17 22:48:35,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 41 states and 107 transitions. [2025-02-17 22:48:35,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2025-02-17 22:48:35,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2025-02-17 22:48:35,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 107 transitions. [2025-02-17 22:48:35,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:48:35,954 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 107 transitions. [2025-02-17 22:48:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 107 transitions. [2025-02-17 22:48:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2025-02-17 22:48:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 2.6176470588235294) internal successors, (89), 33 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 89 transitions. [2025-02-17 22:48:35,974 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 89 transitions. [2025-02-17 22:48:35,974 INFO L432 stractBuchiCegarLoop]: Abstraction has 34 states and 89 transitions. [2025-02-17 22:48:35,975 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:48:35,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 89 transitions. [2025-02-17 22:48:35,975 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2025-02-17 22:48:35,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:48:35,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:48:35,976 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:48:35,976 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:48:35,976 INFO L752 eck$LassoCheckResult]: Stem: "[64] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[50] $Ultimate##0-->L22-2: Formula: (<= 0 v_tx_1) InVars {tx=v_tx_1} OutVars{tx=v_tx_1} AuxVars[] AssignedVars[]" "[67] L10-->$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]" "[56] $Ultimate##0-->L39-2: Formula: (<= 0 v_tx_6) InVars {tx=v_tx_6} OutVars{tx=v_tx_6} AuxVars[] AssignedVars[]" [2025-02-17 22:48:35,976 INFO L754 eck$LassoCheckResult]: Loop: "[58] L39-2-->L39: 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[]" "[60] L39-->L39-2: 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]" [2025-02-17 22:48:35,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:35,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2880328, now seen corresponding path program 1 times [2025-02-17 22:48:35,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:35,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002175712] [2025-02-17 22:48:35,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:35,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:35,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:35,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:35,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,987 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:35,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:35,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:35,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:35,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:35,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2819, now seen corresponding path program 1 times [2025-02-17 22:48:35,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:35,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609075855] [2025-02-17 22:48:35,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:35,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:35,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:35,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:35,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:35,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:35,998 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:35,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:36,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:36,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:36,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:36,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:36,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1526970230, now seen corresponding path program 1 times [2025-02-17 22:48:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730347929] [2025-02-17 22:48:36,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:36,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:48:36,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:48:36,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:36,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:36,010 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:36,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:48:36,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:48:36,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:36,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:36,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:36,055 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:36,056 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:36,056 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:36,056 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:36,056 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:48:36,056 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,056 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:36,056 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:36,056 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:48:36,056 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:36,056 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:36,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,109 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:36,109 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:48:36,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,111 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) [2025-02-17 22:48:36,113 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 [2025-02-17 22:48:36,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:48:36,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:36,126 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:48:36,126 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:48:36,131 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 [2025-02-17 22:48:36,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,133 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) [2025-02-17 22:48:36,134 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 [2025-02-17 22:48:36,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:48:36,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:36,152 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 [2025-02-17 22:48:36,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,154 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) [2025-02-17 22:48:36,155 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 [2025-02-17 22:48:36,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:48:36,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:36,283 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:48:36,289 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 [2025-02-17 22:48:36,289 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:36,289 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:36,289 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:36,289 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:36,289 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:48:36,290 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,290 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:36,290 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:36,290 INFO L132 ssoRankerPreferences]: Filename of dumped script: aaron2_2.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:48:36,290 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:36,290 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:36,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:36,344 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:36,345 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:48:36,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,347 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) [2025-02-17 22:48:36,348 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 [2025-02-17 22:48:36,350 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 [2025-02-17 22:48:36,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:36,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:36,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:36,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:36,363 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:48:36,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:48:36,366 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:48:36,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:48:36,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,375 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) [2025-02-17 22:48:36,377 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 [2025-02-17 22:48:36,377 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 [2025-02-17 22:48:36,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:36,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:36,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:36,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:36,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:48:36,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:48:36,393 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:48:36,398 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 [2025-02-17 22:48:36,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,401 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) [2025-02-17 22:48:36,402 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 [2025-02-17 22:48:36,403 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 [2025-02-17 22:48:36,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:36,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:36,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:36,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:36,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:48:36,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:48:36,424 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:48:36,432 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2025-02-17 22:48:36,433 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2025-02-17 22:48:36,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:36,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:36,435 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) [2025-02-17 22:48:36,437 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 [2025-02-17 22:48:36,438 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:48:36,449 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:48:36,449 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:48:36,450 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y2) = 2*x - 2*y2 + 1 Supporting invariants [1*tx >= 0] [2025-02-17 22:48:36,455 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 [2025-02-17 22:48:36,457 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:48:36,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:36,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:36,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:36,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:36,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:36,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:48:36,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:36,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:48:36,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:48:36,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:36,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:36,510 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:48:36,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:48:36,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-02-17 22:48:36,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 89 transitions. cyclomatic complexity: 63 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:36,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 89 transitions. cyclomatic complexity: 63. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 101 states and 291 transitions. Complement of second has 7 states. [2025-02-17 22:48:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:48:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2025-02-17 22:48:36,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:48:36,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:36,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:48:36,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:36,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-17 22:48:36,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:36,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 291 transitions. [2025-02-17 22:48:36,612 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:48:36,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 0 states and 0 transitions. [2025-02-17 22:48:36,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:48:36,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:48:36,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:48:36,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:48:36,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:48:36,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:48:36,612 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:48:36,612 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:48:36,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:48:36,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:48:36,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:48:36,618 INFO L201 PluginConnector]: Adding new model aaron2_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:48:36 BoogieIcfgContainer [2025-02-17 22:48:36,618 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:48:36,620 INFO L158 Benchmark]: Toolchain (without parser) took 1985.24ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 86.1MB in the beginning and 66.6MB in the end (delta: 19.4MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2025-02-17 22:48:36,620 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:48:36,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.85ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:48:36,621 INFO L158 Benchmark]: Boogie Preprocessor took 11.35ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 84.1MB in the end (delta: 654.4kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:48:36,621 INFO L158 Benchmark]: RCFGBuilder took 144.48ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 75.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:48:36,621 INFO L158 Benchmark]: BuchiAutomizer took 1807.03ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 75.4MB in the beginning and 66.6MB in the end (delta: 8.8MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. [2025-02-17 22:48:36,622 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 0.15ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.85ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 11.35ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 84.1MB in the end (delta: 654.4kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 144.48ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 75.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1807.03ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 75.4MB in the beginning and 66.6MB in the end (delta: 8.8MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 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 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 10 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 70ms VariablesStem: 1 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 182, Trivial Ample Sets caused by loops: 9, Number of non-trivial ample sets: 16, Number of pruned transitions: 10, Number of transitions in reduction automaton: 61, Number of states in reduction automaton: 31, Underlying: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:48:36,633 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 [2025-02-17 22:48:36,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...