/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:36,502 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:36,538 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:12:36,577 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:36,577 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:36,578 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:36,579 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:36,579 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:36,579 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:36,579 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:36,580 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:36,580 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:36,580 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:36,580 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:36,580 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:36,581 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:36,581 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:36,581 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:36,581 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:36,581 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:36,582 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:36,582 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:36,582 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:36,583 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:36,583 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:36,583 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:36,583 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:36,583 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:36,584 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:36,584 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:36,584 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:36,584 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:36,584 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:36,585 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:36,586 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:36,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:36,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:36,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:36,806 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:36,821 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:36,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl [2023-10-12 17:12:36,822 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl' [2023-10-12 17:12:36,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:36,863 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:36,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:36,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:36,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:36,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,885 INFO L138 Inliner]: procedures = 4, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:36,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:36,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:36,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:36,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:36,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:36,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:36,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:36,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:36,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/1) ... [2023-10-12 17:12:36,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:36,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:36,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:36,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:12:36,980 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2023-10-12 17:12:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2023-10-12 17:12:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2023-10-12 17:12:36,980 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:36,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:36,981 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2023-10-12 17:12:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2023-10-12 17:12:36,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2023-10-12 17:12:36,981 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2023-10-12 17:12:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2023-10-12 17:12:36,982 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2023-10-12 17:12:36,982 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:12:37,023 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:37,025 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:37,100 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:37,116 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:37,116 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-10-12 17:12:37,118 INFO L201 PluginConnector]: Adding new model min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:37 BoogieIcfgContainer [2023-10-12 17:12:37,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:37,119 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:37,119 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:37,123 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:37,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:37,123 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:36" (1/2) ... [2023-10-12 17:12:37,125 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25e1959b and model type min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:37, skipping insertion in model container [2023-10-12 17:12:37,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:37,125 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:37" (2/2) ... [2023-10-12 17:12:37,126 INFO L332 chiAutomizerObserver]: Analyzing ICFG min2-max2-sample.bpl [2023-10-12 17:12:37,184 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:12:37,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 135 flow [2023-10-12 17:12:37,226 INFO L124 PetriNetUnfolderBase]: 5/39 cut-off events. [2023-10-12 17:12:37,226 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:12:37,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 39 events. 5/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 100 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-10-12 17:12:37,230 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 49 transitions, 135 flow [2023-10-12 17:12:37,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 39 transitions, 105 flow [2023-10-12 17:12:37,236 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:37,254 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 39 transitions, 105 flow [2023-10-12 17:12:37,256 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 39 transitions, 105 flow [2023-10-12 17:12:37,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 39 transitions, 105 flow [2023-10-12 17:12:37,275 INFO L124 PetriNetUnfolderBase]: 5/39 cut-off events. [2023-10-12 17:12:37,275 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:12:37,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 39 events. 5/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 100 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-10-12 17:12:37,277 INFO L119 LiptonReduction]: Number of co-enabled transitions 810 [2023-10-12 17:12:37,382 INFO L134 LiptonReduction]: Checked pairs total: 1274 [2023-10-12 17:12:37,382 INFO L136 LiptonReduction]: Total number of compositions: 5 [2023-10-12 17:12:37,401 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:37,401 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:37,401 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:37,402 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:37,402 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:37,402 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:37,402 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:37,402 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:37,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:37,733 INFO L131 ngComponentsAnalysis]: Automaton has 783 accepting balls. 2886 [2023-10-12 17:12:37,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:37,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:37,740 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:37,740 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:37,741 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:37,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 3129 states, but on-demand construction may add more states [2023-10-12 17:12:37,786 INFO L131 ngComponentsAnalysis]: Automaton has 783 accepting balls. 2886 [2023-10-12 17:12:37,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:37,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:37,787 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:37,787 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:37,790 INFO L748 eck$LassoCheckResult]: Stem: 58#[$Ultimate##0]don't care [98] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_x=v_computeMinThread1of1ForFork0_x_2, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_x, computeMinThread1of1ForFork0_thidvar0] 61#[$Ultimate##0, L69]don't care [84] $Ultimate##0-->L33: Formula: (= v_array_min_6 0) InVars {} OutVars{array_min=v_array_min_6} AuxVars[] AssignedVars[array_min] 63#[L33, L69]don't care [85] L33-->L36-1: Formula: (= v_i1_7 0) InVars {} OutVars{i1=v_i1_7} AuxVars[] AssignedVars[i1] 69#[L36-1, L69]don't care [2023-10-12 17:12:37,791 INFO L750 eck$LassoCheckResult]: Loop: 69#[L36-1, L69]don't care [87] L36-1-->L36: Formula: (< v_i1_2 v_N_3) InVars {i1=v_i1_2, N=v_N_3} OutVars{i1=v_i1_2, N=v_N_3} AuxVars[] AssignedVars[] 83#[L36, L69]don't care [89] L36-->L36-1: Formula: (and (= (+ v_i1_9 1) v_i1_8) (= v_array_min_7 (let ((.cse0 (select v_A_5 v_i1_9))) (ite (< v_array_min_8 .cse0) v_array_min_8 .cse0)))) InVars {A=v_A_5, i1=v_i1_9, array_min=v_array_min_8} OutVars{A=v_A_5, i1=v_i1_8, array_min=v_array_min_7} AuxVars[] AssignedVars[array_min, i1] 69#[L36-1, L69]don't care [2023-10-12 17:12:37,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:37,798 INFO L85 PathProgramCache]: Analyzing trace with hash 126658, now seen corresponding path program 1 times [2023-10-12 17:12:37,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:37,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614701152] [2023-10-12 17:12:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:37,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:37,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:37,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:37,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:37,958 INFO L85 PathProgramCache]: Analyzing trace with hash 3747, now seen corresponding path program 1 times [2023-10-12 17:12:37,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:37,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698861918] [2023-10-12 17:12:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:37,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:37,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:37,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash 121721124, now seen corresponding path program 1 times [2023-10-12 17:12:37,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:37,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653039693] [2023-10-12 17:12:37,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:37,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:37,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:37,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:38,092 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:38,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:38,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:38,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:38,093 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:38,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:38,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:38,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: min2-max2-sample.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:38,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:38,093 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:38,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:38,116 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:38,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:38,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:38,249 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:38,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:38,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:38,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:12:38,283 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 [2023-10-12 17:12:38,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:38,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:38,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:38,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:38,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:38,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:38,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:38,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:12:38,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:38,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:38,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:12:38,333 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 [2023-10-12 17:12:38,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:38,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:38,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:38,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:38,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:38,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:38,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:38,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:38,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:38,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:38,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:38,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:12:38,365 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 [2023-10-12 17:12:38,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:38,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:38,378 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-10-12 17:12:38,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:38,386 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-10-12 17:12:38,386 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-10-12 17:12:38,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:38,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:38,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:38,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:38,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:12:38,438 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 [2023-10-12 17:12:38,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:38,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:38,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:38,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:38,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:38,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:38,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:38,478 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:12:38,478 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:12:38,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:38,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:38,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:12:38,517 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:38,539 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:38,539 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:38,540 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i1) = 1*N - 1*i1 Supporting invariants [] [2023-10-12 17:12:38,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:38,551 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:38,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:38,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:38,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:38,600 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:38,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:38,647 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 [2023-10-12 17:12:38,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 3129 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-10-12 17:12:39,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:12:39,055 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 3129 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12007 states and 65185 transitions. Complement of second has 8 states. [2023-10-12 17:12:39,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-10-12 17:12:39,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2023-10-12 17:12:39,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 133 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:12:39,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:39,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 133 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:12:39,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:39,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 133 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:12:39,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:39,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12007 states and 65185 transitions. [2023-10-12 17:12:39,323 INFO L131 ngComponentsAnalysis]: Automaton has 1326 accepting balls. 4236 [2023-10-12 17:12:39,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12007 states to 10439 states and 57226 transitions. [2023-10-12 17:12:39,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5393 [2023-10-12 17:12:39,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7722 [2023-10-12 17:12:39,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10439 states and 57226 transitions. [2023-10-12 17:12:39,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:39,527 INFO L219 hiAutomatonCegarLoop]: Abstraction has 10439 states and 57226 transitions. [2023-10-12 17:12:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states and 57226 transitions. [2023-10-12 17:12:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 7845. [2023-10-12 17:12:39,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7845 states, 7845 states have (on average 5.7889101338432125) internal successors, (45414), 7844 states have internal predecessors, (45414), 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) [2023-10-12 17:12:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7845 states to 7845 states and 45414 transitions. [2023-10-12 17:12:39,975 INFO L241 hiAutomatonCegarLoop]: Abstraction has 7845 states and 45414 transitions. [2023-10-12 17:12:39,975 INFO L430 stractBuchiCegarLoop]: Abstraction has 7845 states and 45414 transitions. [2023-10-12 17:12:39,975 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:12:39,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7845 states and 45414 transitions. [2023-10-12 17:12:40,053 INFO L131 ngComponentsAnalysis]: Automaton has 1241 accepting balls. 4002 [2023-10-12 17:12:40,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:40,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:40,054 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:12:40,054 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:40,054 INFO L748 eck$LassoCheckResult]: Stem: 20193#[$Ultimate##0]don't care [98] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_x=v_computeMinThread1of1ForFork0_x_2, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_x, computeMinThread1of1ForFork0_thidvar0] 20195#[$Ultimate##0, L69]don't care [101] L69-->$Ultimate##0: Formula: (and (= v_computeMinThread1of1ForFork1_thidvar0_2 2) (= v_computeMinThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMinThread1of1ForFork1_x=v_computeMinThread1of1ForFork1_x_2, computeMinThread1of1ForFork1_thidvar0=v_computeMinThread1of1ForFork1_thidvar0_2, computeMinThread1of1ForFork1_thidvar1=v_computeMinThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork1_x, computeMinThread1of1ForFork1_thidvar0, computeMinThread1of1ForFork1_thidvar1] 24439#[$Ultimate##0, $Ultimate##0, L70]don't care [90] $Ultimate##0-->L33: Formula: (= v_array_min_6 0) InVars {} OutVars{array_min=v_array_min_6} AuxVars[] AssignedVars[array_min] 24445#[$Ultimate##0, L33, L70]don't care [91] L33-->L36-1: Formula: (= v_i1_7 0) InVars {} OutVars{i1=v_i1_7} AuxVars[] AssignedVars[i1] 27315#[L36-1, $Ultimate##0, L70]don't care [2023-10-12 17:12:40,054 INFO L750 eck$LassoCheckResult]: Loop: 27315#[L36-1, $Ultimate##0, L70]don't care [93] L36-1-->L36: Formula: (< v_i1_2 v_N_3) InVars {i1=v_i1_2, N=v_N_3} OutVars{i1=v_i1_2, N=v_N_3} AuxVars[] AssignedVars[] 27321#[L36, $Ultimate##0, L70]don't care [95] L36-->L36-1: Formula: (and (= (+ v_i1_9 1) v_i1_8) (= v_array_min_7 (let ((.cse0 (select v_A_5 v_i1_9))) (ite (< v_array_min_8 .cse0) v_array_min_8 .cse0)))) InVars {A=v_A_5, i1=v_i1_9, array_min=v_array_min_8} OutVars{A=v_A_5, i1=v_i1_8, array_min=v_array_min_7} AuxVars[] AssignedVars[array_min, i1] 27315#[L36-1, $Ultimate##0, L70]don't care [2023-10-12 17:12:40,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:40,055 INFO L85 PathProgramCache]: Analyzing trace with hash 3942981, now seen corresponding path program 1 times [2023-10-12 17:12:40,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817776884] [2023-10-12 17:12:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:40,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:40,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:40,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:40,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash 3939, now seen corresponding path program 1 times [2023-10-12 17:12:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913682534] [2023-10-12 17:12:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:40,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:40,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:40,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:40,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash -505759577, now seen corresponding path program 1 times [2023-10-12 17:12:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318406647] [2023-10-12 17:12:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:40,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:40,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:40,136 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:40,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:40,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:40,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:40,136 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:40,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:40,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:40,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: min2-max2-sample.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:12:40,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:40,137 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:40,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:40,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:40,212 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:40,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:40,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:40,245 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:40,322 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:40,322 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:40,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:40,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:12:40,328 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 [2023-10-12 17:12:40,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:40,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:40,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:40,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:40,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:40,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:40,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:40,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:40,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:40,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:40,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:12:40,367 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 [2023-10-12 17:12:40,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:40,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:40,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:40,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:40,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:40,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:40,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:40,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:40,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:40,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,422 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:40,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:12:40,426 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 [2023-10-12 17:12:40,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:40,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:40,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:40,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:40,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:40,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:40,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:40,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:40,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:40,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:12:40,464 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 [2023-10-12 17:12:40,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:40,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:40,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:40,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:40,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:40,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:40,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:40,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:40,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,523 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:40,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:12:40,541 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 [2023-10-12 17:12:40,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:40,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:40,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:40,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:40,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:40,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:40,566 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:40,570 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:12:40,570 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:12:40,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,572 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:40,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:12:40,575 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:40,582 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:40,582 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:40,582 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i1) = 1*N - 1*i1 Supporting invariants [] [2023-10-12 17:12:40,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:12:40,586 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:40,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:40,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:40,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:40,619 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:40,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:40,635 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 [2023-10-12 17:12:40,635 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7845 states and 45414 transitions. cyclomatic complexity: 39189 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2023-10-12 17:12:41,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:41,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7845 states and 45414 transitions. cyclomatic complexity: 39189. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 15612 states and 90700 transitions. Complement of second has 8 states. [2023-10-12 17:12:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:41,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2023-10-12 17:12:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2023-10-12 17:12:41,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 131 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:12:41,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:41,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 131 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:12:41,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:41,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 131 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:12:41,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:41,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15612 states and 90700 transitions. [2023-10-12 17:12:41,321 INFO L131 ngComponentsAnalysis]: Automaton has 1594 accepting balls. 4356 [2023-10-12 17:12:41,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15612 states to 14192 states and 83268 transitions. [2023-10-12 17:12:41,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6454 [2023-10-12 17:12:41,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8668 [2023-10-12 17:12:41,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14192 states and 83268 transitions. [2023-10-12 17:12:41,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:41,564 INFO L219 hiAutomatonCegarLoop]: Abstraction has 14192 states and 83268 transitions. [2023-10-12 17:12:41,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14192 states and 83268 transitions. [2023-10-12 17:12:41,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14192 to 7945. [2023-10-12 17:12:41,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7945 states have (on average 6.173694147262429) internal successors, (49050), 7944 states have internal predecessors, (49050), 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) [2023-10-12 17:12:41,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 49050 transitions. [2023-10-12 17:12:41,907 INFO L241 hiAutomatonCegarLoop]: Abstraction has 7945 states and 49050 transitions. [2023-10-12 17:12:41,907 INFO L430 stractBuchiCegarLoop]: Abstraction has 7945 states and 49050 transitions. [2023-10-12 17:12:41,907 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:12:41,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7945 states and 49050 transitions. [2023-10-12 17:12:41,975 INFO L131 ngComponentsAnalysis]: Automaton has 1068 accepting balls. 2916 [2023-10-12 17:12:41,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:41,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:41,976 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:12:41,976 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:41,977 INFO L748 eck$LassoCheckResult]: Stem: 51713#[$Ultimate##0]don't care [98] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_x=v_computeMinThread1of1ForFork0_x_2, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_x, computeMinThread1of1ForFork0_thidvar0] 51715#[$Ultimate##0, L69]don't care [101] L69-->$Ultimate##0: Formula: (and (= v_computeMinThread1of1ForFork1_thidvar0_2 2) (= v_computeMinThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMinThread1of1ForFork1_x=v_computeMinThread1of1ForFork1_x_2, computeMinThread1of1ForFork1_thidvar0=v_computeMinThread1of1ForFork1_thidvar0_2, computeMinThread1of1ForFork1_thidvar1=v_computeMinThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork1_x, computeMinThread1of1ForFork1_thidvar0, computeMinThread1of1ForFork1_thidvar1] 56265#[$Ultimate##0, $Ultimate##0, L70]don't care [104] L70-->$Ultimate##0: Formula: (and (= v_computeMaxThread1of1ForFork2_thidvar2_2 3) (= v_computeMaxThread1of1ForFork2_thidvar0_2 3) (= v_computeMaxThread1of1ForFork2_thidvar1_2 3)) InVars {} OutVars{computeMaxThread1of1ForFork2_y=v_computeMaxThread1of1ForFork2_y_2, computeMaxThread1of1ForFork2_thidvar2=v_computeMaxThread1of1ForFork2_thidvar2_2, computeMaxThread1of1ForFork2_thidvar1=v_computeMaxThread1of1ForFork2_thidvar1_2, computeMaxThread1of1ForFork2_thidvar0=v_computeMaxThread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork2_y, computeMaxThread1of1ForFork2_thidvar2, computeMaxThread1of1ForFork2_thidvar1, computeMaxThread1of1ForFork2_thidvar0] 56269#[L71, $Ultimate##0, $Ultimate##0, $Ultimate##0]don't care [107] L71-->$Ultimate##0: Formula: (and (= v_computeMaxThread1of1ForFork3_thidvar0_2 4) (= v_computeMaxThread1of1ForFork3_thidvar3_2 4) (= v_computeMaxThread1of1ForFork3_thidvar2_2 4) (= v_computeMaxThread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{computeMaxThread1of1ForFork3_thidvar3=v_computeMaxThread1of1ForFork3_thidvar3_2, computeMaxThread1of1ForFork3_y=v_computeMaxThread1of1ForFork3_y_2, computeMaxThread1of1ForFork3_thidvar1=v_computeMaxThread1of1ForFork3_thidvar1_2, computeMaxThread1of1ForFork3_thidvar2=v_computeMaxThread1of1ForFork3_thidvar2_2, computeMaxThread1of1ForFork3_thidvar0=v_computeMaxThread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork3_thidvar3, computeMaxThread1of1ForFork3_y, computeMaxThread1of1ForFork3_thidvar1, computeMaxThread1of1ForFork3_thidvar2, computeMaxThread1of1ForFork3_thidvar0] 62427#[$Ultimate##0, $Ultimate##0, L72, $Ultimate##0, $Ultimate##0]don't care [110] L72-->L60: Formula: (and (= 5 v_sampleThread1of1ForFork4_thidvar0_2) (= 5 v_sampleThread1of1ForFork4_thidvar1_2) (= 5 v_sampleThread1of1ForFork4_thidvar2_2) (= 5 v_sampleThread1of1ForFork4_thidvar4_2) (= 5 v_sampleThread1of1ForFork4_thidvar3_2)) InVars {} OutVars{sampleThread1of1ForFork4_thidvar4=v_sampleThread1of1ForFork4_thidvar4_2, sampleThread1of1ForFork4_thidvar3=v_sampleThread1of1ForFork4_thidvar3_2, sampleThread1of1ForFork4_thidvar2=v_sampleThread1of1ForFork4_thidvar2_2, sampleThread1of1ForFork4_thidvar1=v_sampleThread1of1ForFork4_thidvar1_2, sampleThread1of1ForFork4_thidvar0=v_sampleThread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[sampleThread1of1ForFork4_thidvar4, sampleThread1of1ForFork4_thidvar3, sampleThread1of1ForFork4_thidvar2, sampleThread1of1ForFork4_thidvar1, sampleThread1of1ForFork4_thidvar0] 59451#[$Ultimate##0, $Ultimate##0, L60, $Ultimate##0, L73, $Ultimate##0]don't care [2023-10-12 17:12:41,977 INFO L750 eck$LassoCheckResult]: Loop: 59451#[$Ultimate##0, $Ultimate##0, L60, $Ultimate##0, L73, $Ultimate##0]don't care [82] L60-->L62: Formula: (= v_min_samples_1 (store v_min_samples_2 (+ (- 1) v_i1_1) v_array_min_3)) InVars {min_samples=v_min_samples_2, i1=v_i1_1, array_min=v_array_min_3} OutVars{min_samples=v_min_samples_1, i1=v_i1_1, array_min=v_array_min_3} AuxVars[] AssignedVars[min_samples] 59449#[$Ultimate##0, $Ultimate##0, $Ultimate##0, L73, L62, $Ultimate##0]don't care [83] L62-->L60: Formula: (= (store v_max_samples_2 (+ (- 1) v_i2_7) v_array_max_6) v_max_samples_1) InVars {i2=v_i2_7, array_max=v_array_max_6, max_samples=v_max_samples_2} OutVars{i2=v_i2_7, array_max=v_array_max_6, max_samples=v_max_samples_1} AuxVars[] AssignedVars[max_samples] 59451#[$Ultimate##0, $Ultimate##0, L60, $Ultimate##0, L73, $Ultimate##0]don't care [2023-10-12 17:12:41,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:41,977 INFO L85 PathProgramCache]: Analyzing trace with hash 122246471, now seen corresponding path program 1 times [2023-10-12 17:12:41,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:41,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98862061] [2023-10-12 17:12:41,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:41,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:42,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 3586, now seen corresponding path program 1 times [2023-10-12 17:12:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:42,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379819645] [2023-10-12 17:12:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:42,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:42,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1514744264, now seen corresponding path program 1 times [2023-10-12 17:12:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:42,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948435788] [2023-10-12 17:12:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,156 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:42,175 INFO L201 PluginConnector]: Adding new model min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:42 BoogieIcfgContainer [2023-10-12 17:12:42,175 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:42,175 INFO L158 Benchmark]: Toolchain (without parser) took 5312.61ms. Allocated memory was 178.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 127.5MB in the beginning and 1.1GB in the end (delta: -983.1MB). Peak memory consumption was 345.3MB. Max. memory is 8.0GB. [2023-10-12 17:12:42,175 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 178.3MB. Free memory was 128.7MB in the beginning and 128.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:42,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.98ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 125.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:42,176 INFO L158 Benchmark]: Boogie Preprocessor took 18.05ms. Allocated memory is still 178.3MB. Free memory was 125.9MB in the beginning and 124.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:42,176 INFO L158 Benchmark]: RCFGBuilder took 212.70ms. Allocated memory is still 178.3MB. Free memory was 124.7MB in the beginning and 114.8MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:12:42,177 INFO L158 Benchmark]: BuchiAutomizer took 5056.00ms. Allocated memory was 178.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 114.8MB in the beginning and 1.1GB in the end (delta: -995.8MB). Peak memory consumption was 332.7MB. Max. memory is 8.0GB. [2023-10-12 17:12:42,178 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 0.26ms. Allocated memory is still 178.3MB. Free memory was 128.7MB in the beginning and 128.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.98ms. Allocated memory is still 178.3MB. Free memory was 127.5MB in the beginning and 125.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.05ms. Allocated memory is still 178.3MB. Free memory was 125.9MB in the beginning and 124.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 212.70ms. Allocated memory is still 178.3MB. Free memory was 124.7MB in the beginning and 114.8MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 5056.00ms. Allocated memory was 178.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 114.8MB in the beginning and 1.1GB in the end (delta: -995.8MB). Peak memory consumption was 332.7MB. 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) and one nonterminating remainder module.One deterministic module has affine ranking function N + -1 * i1 and consists of 5 locations. One deterministic module has affine ranking function N + -1 * i1 and consists of 5 locations. The remainder module has 7945 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.8s AutomataMinimizationTime, 2 MinimizatonAttempts, 8841 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.9s 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, 143 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 62 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital43 mio100 ax100 hnf100 lsp130 ukn53 mio100 lsp60 div100 bol100 ite100 ukn100 eq166 hnf100 smp100 dnf160 smp58 tf100 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 60]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L69] FORK 0 fork 1 computeMin(); [L70] FORK 0 fork 2, 2 computeMin(); [L71] FORK 0 fork 3, 3, 3 computeMax(); [L72] FORK 0 fork 4, 4, 4, 4 computeMax(); [L73] FORK 0 fork 5, 5, 5, 5, 5 sample(); Loop: [L61] min_samples[i1 - 1] := array_min; [L62] max_samples[i2 - 1] := array_max; End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 60]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L69] FORK 0 fork 1 computeMin(); [L70] FORK 0 fork 2, 2 computeMin(); [L71] FORK 0 fork 3, 3, 3 computeMax(); [L72] FORK 0 fork 4, 4, 4, 4 computeMax(); [L73] FORK 0 fork 5, 5, 5, 5, 5 sample(); Loop: [L61] min_samples[i1 - 1] := array_min; [L62] max_samples[i2 - 1] := array_max; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 50 PlacesBefore, 45 PlacesAfterwards, 39 TransitionsBefore, 34 TransitionsAfterwards, 810 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 1274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 562, independent: 518, independent conditional: 0, independent unconditional: 518, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 386, independent: 364, independent conditional: 0, independent unconditional: 364, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 386, independent: 360, independent conditional: 0, independent unconditional: 360, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 562, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 386, unknown conditional: 0, unknown unconditional: 386] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 189, Positive conditional cache size: 0, Positive unconditional cache size: 189, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be incorrect! [2023-10-12 17:12:42,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...