/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:24:40,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:24:40,222 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-09 23:24:40,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:24:40,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:24:40,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:24:40,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:24:40,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:24:40,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:24:40,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:24:40,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:24:40,295 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:24:40,295 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:24:40,295 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:24:40,296 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:24:40,296 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:24:40,296 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:24:40,297 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:24:40,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:24:40,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:24:40,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:24:40,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:24:40,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:24:40,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:24:40,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:24:40,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:24:40,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:24:40,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:24:40,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:24:40,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:24:40,304 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:24:40,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:24:40,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:24:40,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:24:40,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:24:40,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:24:40,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:24:40,306 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:24:40,306 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2024-02-09 23:24:40,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:24:40,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:24:40,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:24:40,618 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:24:40,619 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:24:40,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs.bpl [2024-02-09 23:24:40,620 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs.bpl' [2024-02-09 23:24:40,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:24:40,648 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:24:40,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:24:40,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:24:40,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:24:40,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,687 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-09 23:24:40,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:24:40,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:24:40,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:24:40,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:24:40,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:24:40,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:24:40,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:24:40,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:24:40,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/1) ... [2024-02-09 23:24:40,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:40,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:40,804 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) [2024-02-09 23:24:40,811 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 [2024-02-09 23:24:40,854 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2024-02-09 23:24:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2024-02-09 23:24:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2024-02-09 23:24:40,855 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:24:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:24:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:24:40,856 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2024-02-09 23:24:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2024-02-09 23:24:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2024-02-09 23:24:40,856 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mapAbs given in one single declaration [2024-02-09 23:24:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure mapAbs [2024-02-09 23:24:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mapAbs [2024-02-09 23:24:40,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2024-02-09 23:24:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2024-02-09 23:24:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2024-02-09 23:24:40,859 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-09 23:24:40,916 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:24:40,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:24:41,044 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:24:41,051 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:24:41,051 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:24:41,053 INFO L201 PluginConnector]: Adding new model min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:24:41 BoogieIcfgContainer [2024-02-09 23:24:41,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:24:41,054 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:24:41,054 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:24:41,061 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:24:41,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:24:41,062 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:40" (1/2) ... [2024-02-09 23:24:41,063 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ffee913 and model type min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:24:41, skipping insertion in model container [2024-02-09 23:24:41,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:24:41,063 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:24:41" (2/2) ... [2024-02-09 23:24:41,066 INFO L332 chiAutomizerObserver]: Analyzing ICFG min-max-sample-abs.bpl [2024-02-09 23:24:41,152 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-09 23:24:41,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 41 transitions, 104 flow [2024-02-09 23:24:41,200 INFO L124 PetriNetUnfolderBase]: 3/33 cut-off events. [2024-02-09 23:24:41,200 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-09 23:24:41,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 33 events. 3/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 85 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-02-09 23:24:41,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 41 transitions, 104 flow [2024-02-09 23:24:41,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 84 flow [2024-02-09 23:24:41,224 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:24:41,225 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:24:41,225 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:24:41,225 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:24:41,225 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:24:41,225 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:24:41,225 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:24:41,225 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 23:24:41,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2024-02-09 23:24:41,527 INFO L131 ngComponentsAnalysis]: Automaton has 375 accepting balls. 1641 [2024-02-09 23:24:41,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:41,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:41,533 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-02-09 23:24:41,533 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:41,534 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:24:41,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 2101 states, but on-demand construction may add more states [2024-02-09 23:24:41,572 INFO L131 ngComponentsAnalysis]: Automaton has 375 accepting balls. 1641 [2024-02-09 23:24:41,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:41,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:41,574 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-02-09 23:24:41,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:41,579 INFO L748 eck$LassoCheckResult]: Stem: 50#[$Ultimate##0]don't care [104] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_14, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_i1, computeMinThread1of1ForFork0_thidvar0] 53#[$Ultimate##0, L77]don't care [95] $Ultimate##0-->L30: Formula: (= (select v_A_5 0) v_array_min_4) InVars {A=v_A_5} OutVars{A=v_A_5, array_min=v_array_min_4} AuxVars[] AssignedVars[array_min] 57#[L77, L30]don't care [96] L30-->L32-1: Formula: (= v_computeMinThread1of1ForFork0_i1_1 0) InVars {} OutVars{computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_1} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_i1] 65#[L77, L32-1]don't care [2024-02-09 23:24:41,580 INFO L750 eck$LassoCheckResult]: Loop: 65#[L77, L32-1]don't care [98] L32-1-->L33: Formula: (< v_computeMinThread1of1ForFork0_i1_5 v_N_5) InVars {computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_5, N=v_N_5} OutVars{computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_5, N=v_N_5} AuxVars[] AssignedVars[] 83#[L33, L77]don't care [100] L33-->L34: Formula: (= (let ((.cse0 (let ((.cse1 (select v_A_6 v_computeMinThread1of1ForFork0_i1_7))) (ite (< .cse1 0) (- .cse1) .cse1)))) (ite (< v_array_min_6 .cse0) v_array_min_6 .cse0)) v_array_min_5) InVars {A=v_A_6, computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_7, array_min=v_array_min_6} OutVars{A=v_A_6, computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_7, array_min=v_array_min_5} AuxVars[] AssignedVars[array_min] 119#[L34, L77]don't care [101] L34-->L32-1: Formula: (= v_computeMinThread1of1ForFork0_i1_10 (+ v_computeMinThread1of1ForFork0_i1_9 1)) InVars {computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_9} OutVars{computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_10} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_i1] 65#[L77, L32-1]don't care [2024-02-09 23:24:41,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash 132776, now seen corresponding path program 1 times [2024-02-09 23:24:41,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:41,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423163928] [2024-02-09 23:24:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:41,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:41,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:41,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:41,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:41,693 INFO L85 PathProgramCache]: Analyzing trace with hash 127170, now seen corresponding path program 1 times [2024-02-09 23:24:41,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:41,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813857524] [2024-02-09 23:24:41,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:41,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:41,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:41,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:41,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:41,722 INFO L85 PathProgramCache]: Analyzing trace with hash -339340101, now seen corresponding path program 1 times [2024-02-09 23:24:41,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:41,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240725698] [2024-02-09 23:24:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:41,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:41,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:41,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:42,028 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:42,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:42,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:42,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:42,030 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:42,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:42,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:42,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:42,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: min-max-sample-abs.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:24:42,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:42,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:42,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:42,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:42,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:42,418 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:42,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:42,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:42,424 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) [2024-02-09 23:24:42,437 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 [2024-02-09 23:24:42,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:42,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:42,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:42,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:42,450 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:42,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:42,454 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 [2024-02-09 23:24:42,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:42,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:42,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:42,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:42,473 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) [2024-02-09 23:24:42,479 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 [2024-02-09 23:24:42,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:42,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:42,487 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-02-09 23:24:42,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:42,492 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 [2024-02-09 23:24:42,534 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-02-09 23:24:42,534 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-02-09 23:24:42,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:42,604 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 [2024-02-09 23:24:42,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:42,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:42,609 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) [2024-02-09 23:24:42,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-02-09 23:24:42,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:42,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:42,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:42,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:42,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:42,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:42,658 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 [2024-02-09 23:24:42,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:42,683 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:24:42,684 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 23:24:42,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:42,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:42,690 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) [2024-02-09 23:24:42,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:42,701 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 [2024-02-09 23:24:42,722 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:42,722 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:42,723 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(computeMinThread1of1ForFork0_i1, N) = -1*computeMinThread1of1ForFork0_i1 + 1*N Supporting invariants [] [2024-02-09 23:24:42,730 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 [2024-02-09 23:24:42,733 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:42,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:42,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:42,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:42,792 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:42,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:24:42,854 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 [2024-02-09 23:24:42,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 2101 states, but on-demand construction may add more states 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) [2024-02-09 23:24:43,062 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 2101 states, but on-demand construction may add more states. 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 4956 states and 21390 transitions. Complement of second has 6 states. [2024-02-09 23:24:43,064 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 [2024-02-09 23:24:43,072 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) [2024-02-09 23:24:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-02-09 23:24:43,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 3 letters. Loop has 3 letters. [2024-02-09 23:24:43,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:43,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 6 letters. Loop has 3 letters. [2024-02-09 23:24:43,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:43,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 3 letters. Loop has 6 letters. [2024-02-09 23:24:43,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:43,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4956 states and 21390 transitions. [2024-02-09 23:24:43,161 INFO L131 ngComponentsAnalysis]: Automaton has 382 accepting balls. 1386 [2024-02-09 23:24:43,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4956 states to 3760 states and 16323 transitions. [2024-02-09 23:24:43,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2131 [2024-02-09 23:24:43,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2829 [2024-02-09 23:24:43,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3760 states and 16323 transitions. [2024-02-09 23:24:43,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 23:24:43,242 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3760 states and 16323 transitions. [2024-02-09 23:24:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states and 16323 transitions. [2024-02-09 23:24:43,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3065. [2024-02-09 23:24:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 3065 states have (on average 4.3938009787928225) internal successors, (13467), 3064 states have internal predecessors, (13467), 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) [2024-02-09 23:24:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 13467 transitions. [2024-02-09 23:24:43,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3065 states and 13467 transitions. [2024-02-09 23:24:43,470 INFO L428 stractBuchiCegarLoop]: Abstraction has 3065 states and 13467 transitions. [2024-02-09 23:24:43,470 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:24:43,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3065 states and 13467 transitions. [2024-02-09 23:24:43,496 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 [2024-02-09 23:24:43,515 INFO L131 ngComponentsAnalysis]: Automaton has 382 accepting balls. 1386 [2024-02-09 23:24:43,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:43,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:43,515 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-02-09 23:24:43,515 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:43,516 INFO L748 eck$LassoCheckResult]: Stem: 10951#[$Ultimate##0]don't care [104] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_14, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_i1, computeMinThread1of1ForFork0_thidvar0] 10953#[$Ultimate##0, L77]don't care [107] L77-->$Ultimate##0: Formula: (and (= v_computeMaxThread1of1ForFork1_thidvar0_2 2) (= v_computeMaxThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_14, computeMaxThread1of1ForFork1_thidvar0=v_computeMaxThread1of1ForFork1_thidvar0_2, computeMaxThread1of1ForFork1_thidvar1=v_computeMaxThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork1_i2, computeMaxThread1of1ForFork1_thidvar0, computeMaxThread1of1ForFork1_thidvar1] 11425#[$Ultimate##0, $Ultimate##0, L78]don't care [78] $Ultimate##0-->L44: Formula: (= (select v_A_1 0) v_array_max_1) InVars {A=v_A_1} OutVars{A=v_A_1, array_max=v_array_max_1} AuxVars[] AssignedVars[array_max] 11427#[$Ultimate##0, L44, L78]don't care [79] L44-->L46-1: Formula: (= v_computeMaxThread1of1ForFork1_i2_1 0) InVars {} OutVars{computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_1} AuxVars[] AssignedVars[computeMaxThread1of1ForFork1_i2] 14467#[$Ultimate##0, L46-1, L78]don't care [2024-02-09 23:24:43,516 INFO L750 eck$LassoCheckResult]: Loop: 14467#[$Ultimate##0, L46-1, L78]don't care [81] L46-1-->L47: Formula: (< v_computeMaxThread1of1ForFork1_i2_5 v_N_1) InVars {computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_5, N=v_N_1} OutVars{computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_5, N=v_N_1} AuxVars[] AssignedVars[] 13451#[$Ultimate##0, L47, L78]don't care [83] L47-->L48: Formula: (= (let ((.cse0 (let ((.cse1 (select v_A_2 v_computeMaxThread1of1ForFork1_i2_7))) (ite (< .cse1 0) (- .cse1) .cse1)))) (ite (< v_array_max_3 .cse0) .cse0 v_array_max_3)) v_array_max_2) InVars {A=v_A_2, array_max=v_array_max_3, computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_7} OutVars{A=v_A_2, array_max=v_array_max_2, computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_7} AuxVars[] AssignedVars[array_max] 13453#[$Ultimate##0, L48, L78]don't care [84] L48-->L46-1: Formula: (= v_computeMaxThread1of1ForFork1_i2_10 (+ v_computeMaxThread1of1ForFork1_i2_9 1)) InVars {computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_9} OutVars{computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_10} AuxVars[] AssignedVars[computeMaxThread1of1ForFork1_i2] 14467#[$Ultimate##0, L46-1, L78]don't care [2024-02-09 23:24:43,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:43,517 INFO L85 PathProgramCache]: Analyzing trace with hash 4127109, now seen corresponding path program 1 times [2024-02-09 23:24:43,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:43,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885418948] [2024-02-09 23:24:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:43,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:43,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:43,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:43,535 INFO L85 PathProgramCache]: Analyzing trace with hash 110289, now seen corresponding path program 1 times [2024-02-09 23:24:43,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:43,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753784692] [2024-02-09 23:24:43,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:43,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:43,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:43,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:43,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1603266867, now seen corresponding path program 1 times [2024-02-09 23:24:43,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:43,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533475754] [2024-02-09 23:24:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:43,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:43,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:43,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:43,911 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:43,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:43,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:43,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:43,911 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:43,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:43,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:43,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:43,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: min-max-sample-abs.bpl_BEv2_Iteration2_Lasso [2024-02-09 23:24:43,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:43,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:43,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:43,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:44,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:44,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:44,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:44,298 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:44,298 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:44,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:44,301 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) [2024-02-09 23:24:44,311 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 [2024-02-09 23:24:44,312 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 [2024-02-09 23:24:44,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:44,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:44,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:44,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:44,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:44,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:44,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:44,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:44,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:44,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:44,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:44,331 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) [2024-02-09 23:24:44,334 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 [2024-02-09 23:24:44,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:44,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:44,342 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2024-02-09 23:24:44,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:44,359 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 [2024-02-09 23:24:44,406 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2024-02-09 23:24:44,407 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2024-02-09 23:24:44,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:44,509 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 [2024-02-09 23:24:44,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:44,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:44,510 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) [2024-02-09 23:24:44,518 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 [2024-02-09 23:24:44,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:44,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:44,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:44,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:44,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:44,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:44,534 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 [2024-02-09 23:24:44,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:44,549 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:24:44,549 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 23:24:44,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:44,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:44,551 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) [2024-02-09 23:24:44,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:44,579 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 [2024-02-09 23:24:44,597 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:44,597 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:44,597 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(computeMaxThread1of1ForFork1_i2, N) = -1*computeMaxThread1of1ForFork1_i2 + 1*N Supporting invariants [] [2024-02-09 23:24:44,604 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 [2024-02-09 23:24:44,605 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:44,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:44,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:44,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:44,636 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:44,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:24:44,658 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 [2024-02-09 23:24:44,658 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3065 states and 13467 transitions. cyclomatic complexity: 10895 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-02-09 23:24:44,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-02-09 23:24:44,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3065 states and 13467 transitions. cyclomatic complexity: 10895. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8212 states and 39134 transitions. Complement of second has 6 states. [2024-02-09 23:24:44,876 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 [2024-02-09 23:24:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-02-09 23:24:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-02-09 23:24:44,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 4 letters. Loop has 3 letters. [2024-02-09 23:24:44,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:44,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 7 letters. Loop has 3 letters. [2024-02-09 23:24:44,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:44,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 95 transitions. Stem has 4 letters. Loop has 6 letters. [2024-02-09 23:24:44,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:44,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8212 states and 39134 transitions. [2024-02-09 23:24:44,996 INFO L131 ngComponentsAnalysis]: Automaton has 300 accepting balls. 900 [2024-02-09 23:24:45,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8212 states to 5394 states and 25653 transitions. [2024-02-09 23:24:45,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2113 [2024-02-09 23:24:45,093 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2717 [2024-02-09 23:24:45,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5394 states and 25653 transitions. [2024-02-09 23:24:45,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 23:24:45,093 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5394 states and 25653 transitions. [2024-02-09 23:24:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states and 25653 transitions. [2024-02-09 23:24:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 4431. [2024-02-09 23:24:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4431 states, 4431 states have (on average 4.761227713834349) internal successors, (21097), 4430 states have internal predecessors, (21097), 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) [2024-02-09 23:24:45,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 21097 transitions. [2024-02-09 23:24:45,313 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4431 states and 21097 transitions. [2024-02-09 23:24:45,314 INFO L428 stractBuchiCegarLoop]: Abstraction has 4431 states and 21097 transitions. [2024-02-09 23:24:45,314 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:24:45,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4431 states and 21097 transitions. [2024-02-09 23:24:45,423 INFO L131 ngComponentsAnalysis]: Automaton has 300 accepting balls. 900 [2024-02-09 23:24:45,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:45,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:45,424 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-02-09 23:24:45,424 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:45,428 INFO L748 eck$LassoCheckResult]: Stem: 26294#[$Ultimate##0]don't care [104] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_i1=v_computeMinThread1of1ForFork0_i1_14, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_i1, computeMinThread1of1ForFork0_thidvar0] 26296#[$Ultimate##0, L77]don't care [107] L77-->$Ultimate##0: Formula: (and (= v_computeMaxThread1of1ForFork1_thidvar0_2 2) (= v_computeMaxThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMaxThread1of1ForFork1_i2=v_computeMaxThread1of1ForFork1_i2_14, computeMaxThread1of1ForFork1_thidvar0=v_computeMaxThread1of1ForFork1_thidvar0_2, computeMaxThread1of1ForFork1_thidvar1=v_computeMaxThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork1_i2, computeMaxThread1of1ForFork1_thidvar0, computeMaxThread1of1ForFork1_thidvar1] 27020#[$Ultimate##0, $Ultimate##0, L78]don't care [110] L78-->$Ultimate##0: Formula: (and (= v_sampleThread1of1ForFork2_thidvar0_2 3) (= v_sampleThread1of1ForFork2_thidvar2_2 3) (= v_sampleThread1of1ForFork2_thidvar1_2 3)) InVars {} OutVars{sampleThread1of1ForFork2_diff=v_sampleThread1of1ForFork2_diff_4, sampleThread1of1ForFork2_min_l=v_sampleThread1of1ForFork2_min_l_6, sampleThread1of1ForFork2_thidvar0=v_sampleThread1of1ForFork2_thidvar0_2, sampleThread1of1ForFork2_thidvar2=v_sampleThread1of1ForFork2_thidvar2_2, sampleThread1of1ForFork2_max_l=v_sampleThread1of1ForFork2_max_l_6, sampleThread1of1ForFork2_thidvar1=v_sampleThread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[sampleThread1of1ForFork2_diff, sampleThread1of1ForFork2_min_l, sampleThread1of1ForFork2_thidvar0, sampleThread1of1ForFork2_thidvar2, sampleThread1of1ForFork2_max_l, sampleThread1of1ForFork2_thidvar1] 27022#[$Ultimate##0, $Ultimate##0, L79, $Ultimate##0]don't care [113] L79-->$Ultimate##0: Formula: (and (= v_mapAbsThread1of1ForFork3_thidvar2_2 4) (= v_mapAbsThread1of1ForFork3_thidvar1_2 4) (= v_mapAbsThread1of1ForFork3_thidvar0_2 4) (= v_mapAbsThread1of1ForFork3_thidvar3_2 4)) InVars {} OutVars{mapAbsThread1of1ForFork3_thidvar3=v_mapAbsThread1of1ForFork3_thidvar3_2, mapAbsThread1of1ForFork3_thidvar2=v_mapAbsThread1of1ForFork3_thidvar2_2, mapAbsThread1of1ForFork3_thidvar1=v_mapAbsThread1of1ForFork3_thidvar1_2, mapAbsThread1of1ForFork3_thidvar0=v_mapAbsThread1of1ForFork3_thidvar0_2, mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_14} AuxVars[] AssignedVars[mapAbsThread1of1ForFork3_thidvar3, mapAbsThread1of1ForFork3_thidvar2, mapAbsThread1of1ForFork3_thidvar1, mapAbsThread1of1ForFork3_thidvar0, mapAbsThread1of1ForFork3_j] 28126#[$Ultimate##0, $Ultimate##0, $Ultimate##0, L80, $Ultimate##0]don't care [89] $Ultimate##0-->L58-1: Formula: (= v_mapAbsThread1of1ForFork3_j_1 0) InVars {} OutVars{mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_1} AuxVars[] AssignedVars[mapAbsThread1of1ForFork3_j] 26928#[$Ultimate##0, $Ultimate##0, L80, L58-1, $Ultimate##0]don't care [2024-02-09 23:24:45,428 INFO L750 eck$LassoCheckResult]: Loop: 26928#[$Ultimate##0, $Ultimate##0, L80, L58-1, $Ultimate##0]don't care [91] L58-1-->L59: Formula: (< v_mapAbsThread1of1ForFork3_j_5 v_N_4) InVars {mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_5, N=v_N_4} OutVars{mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_5, N=v_N_4} AuxVars[] AssignedVars[] 26008#[$Ultimate##0, $Ultimate##0, L80, L59, $Ultimate##0]don't care [93] L59-->L60: Formula: (= (store v_A_4 v_mapAbsThread1of1ForFork3_j_7 (let ((.cse0 (select v_A_4 v_mapAbsThread1of1ForFork3_j_7))) (ite (< .cse0 0) (- .cse0) .cse0))) v_A_3) InVars {A=v_A_4, mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_7} OutVars{A=v_A_3, mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_7} AuxVars[] AssignedVars[A] 26012#[$Ultimate##0, $Ultimate##0, L80, $Ultimate##0, L60]don't care [94] L60-->L58-1: Formula: (= v_mapAbsThread1of1ForFork3_j_10 (+ v_mapAbsThread1of1ForFork3_j_9 1)) InVars {mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_9} OutVars{mapAbsThread1of1ForFork3_j=v_mapAbsThread1of1ForFork3_j_10} AuxVars[] AssignedVars[mapAbsThread1of1ForFork3_j] 26928#[$Ultimate##0, $Ultimate##0, L80, L58-1, $Ultimate##0]don't care [2024-02-09 23:24:45,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:45,429 INFO L85 PathProgramCache]: Analyzing trace with hash 127972274, now seen corresponding path program 1 times [2024-02-09 23:24:45,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:45,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361108224] [2024-02-09 23:24:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:45,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:45,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:45,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:45,457 INFO L85 PathProgramCache]: Analyzing trace with hash 120219, now seen corresponding path program 1 times [2024-02-09 23:24:45,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:45,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280238652] [2024-02-09 23:24:45,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:45,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:45,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:45,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:45,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1508853686, now seen corresponding path program 1 times [2024-02-09 23:24:45,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:45,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022187852] [2024-02-09 23:24:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:45,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:45,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:45,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:45,580 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:45,580 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:45,580 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:45,580 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:45,580 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:45,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:45,581 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:45,581 INFO L133 ssoRankerPreferences]: Filename of dumped script: min-max-sample-abs.bpl_BEv2_Iteration3_Lasso [2024-02-09 23:24:45,581 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:45,581 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:45,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:24:45,742 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:45,743 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:45,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:45,744 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) [2024-02-09 23:24:45,747 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 [2024-02-09 23:24:45,748 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 [2024-02-09 23:24:45,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:45,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:45,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:45,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:45,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:45,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:45,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:45,770 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 [2024-02-09 23:24:45,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:45,772 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) [2024-02-09 23:24:45,780 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 [2024-02-09 23:24:45,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:45,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:45,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:45,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:45,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:45,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:45,792 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 [2024-02-09 23:24:45,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:45,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:45,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:45,807 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) [2024-02-09 23:24:45,814 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 [2024-02-09 23:24:45,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:45,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:45,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:45,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:45,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:45,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:45,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:45,826 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 [2024-02-09 23:24:45,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:45,844 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 [2024-02-09 23:24:45,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:45,846 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2024-02-09 23:24:45,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-02-09 23:24:45,850 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 [2024-02-09 23:24:45,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:45,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:45,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:45,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:45,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:45,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:45,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:45,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:45,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:45,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:45,880 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2024-02-09 23:24:45,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-02-09 23:24:45,882 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 [2024-02-09 23:24:45,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:45,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:45,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:45,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:45,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:45,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:45,916 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:45,920 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:24:45,920 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 23:24:45,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:45,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:45,925 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2024-02-09 23:24:45,935 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:45,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-02-09 23:24:45,962 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:45,962 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:45,962 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mapAbsThread1of1ForFork3_j, N) = -1*mapAbsThread1of1ForFork3_j + 1*N Supporting invariants [] [2024-02-09 23:24:45,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:45,966 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:45,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:45,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:45,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:45,999 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:46,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:24:46,017 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 [2024-02-09 23:24:46,018 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4431 states and 21097 transitions. cyclomatic complexity: 17233 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-02-09 23:24:46,251 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4431 states and 21097 transitions. cyclomatic complexity: 17233. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 11735 states and 57362 transitions. Complement of second has 6 states. [2024-02-09 23:24:46,253 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 [2024-02-09 23:24:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-02-09 23:24:46,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-02-09 23:24:46,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 5 letters. Loop has 3 letters. [2024-02-09 23:24:46,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:46,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 8 letters. Loop has 3 letters. [2024-02-09 23:24:46,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:46,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 5 letters. Loop has 6 letters. [2024-02-09 23:24:46,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:46,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11735 states and 57362 transitions. [2024-02-09 23:24:46,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:46,413 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:24:46,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11735 states to 0 states and 0 transitions. [2024-02-09 23:24:46,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-02-09 23:24:46,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-02-09 23:24:46,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-02-09 23:24:46,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:24:46,414 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:46,414 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:46,414 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:46,414 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-02-09 23:24:46,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-02-09 23:24:46,415 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:24:46,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-02-09 23:24:46,422 INFO L201 PluginConnector]: Adding new model min-max-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:24:46 BoogieIcfgContainer [2024-02-09 23:24:46,422 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:24:46,423 INFO L158 Benchmark]: Toolchain (without parser) took 5774.76ms. Allocated memory was 204.5MB in the beginning and 1.0GB in the end (delta: 829.4MB). Free memory was 168.7MB in the beginning and 810.5MB in the end (delta: -641.8MB). Peak memory consumption was 188.7MB. Max. memory is 8.0GB. [2024-02-09 23:24:46,423 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 204.5MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:24:46,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.58ms. Allocated memory is still 204.5MB. Free memory was 168.7MB in the beginning and 167.0MB in the end (delta: 1.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-02-09 23:24:46,424 INFO L158 Benchmark]: Boogie Preprocessor took 63.54ms. Allocated memory is still 204.5MB. Free memory was 167.0MB in the beginning and 178.0MB in the end (delta: -10.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-02-09 23:24:46,424 INFO L158 Benchmark]: RCFGBuilder took 299.26ms. Allocated memory is still 204.5MB. Free memory was 177.8MB in the beginning and 167.7MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2024-02-09 23:24:46,425 INFO L158 Benchmark]: BuchiAutomizer took 5368.07ms. Allocated memory was 204.5MB in the beginning and 1.0GB in the end (delta: 829.4MB). Free memory was 167.7MB in the beginning and 810.5MB in the end (delta: -642.9MB). Peak memory consumption was 187.9MB. Max. memory is 8.0GB. [2024-02-09 23:24:46,426 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 0.13ms. Allocated memory is still 204.5MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.58ms. Allocated memory is still 204.5MB. Free memory was 168.7MB in the beginning and 167.0MB in the end (delta: 1.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.54ms. Allocated memory is still 204.5MB. Free memory was 167.0MB in the beginning and 178.0MB in the end (delta: -10.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 299.26ms. Allocated memory is still 204.5MB. Free memory was 177.8MB in the beginning and 167.7MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 5368.07ms. Allocated memory was 204.5MB in the beginning and 1.0GB in the end (delta: 829.4MB). Free memory was 167.7MB in the beginning and 810.5MB in the end (delta: -642.9MB). Peak memory consumption was 187.9MB. 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 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function N + -1 * i2 and consists of 4 locations. One deterministic module has affine ranking function N + -1 * j and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.4s AutomataMinimizationTime, 2 MinimizatonAttempts, 1658 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.5s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 223 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 145 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 154 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital87 mio100 ax100 hnf100 lsp421 ukn15 mio100 lsp87 div100 bol100 ite100 ukn100 eq157 hnf97 smp100 dnf328 smp53 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 174ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-02-09 23:24:46,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...