/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/map-incr-decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:24:27,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:24:27,380 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 23:24:27,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:24:27,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:24:27,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:24:27,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:24:27,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:24:27,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:24:27,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:24:27,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:24:27,445 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:24:27,445 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:24:27,446 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:24:27,446 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:24:27,446 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:24:27,446 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:24:27,446 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:24:27,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:24:27,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:24:27,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:24:27,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:24:27,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:24:27,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:24:27,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:24:27,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:24:27,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:24:27,465 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:24:27,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:24:27,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:24:27,466 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:24:27,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:24:27,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:24:27,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:24:27,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:24:27,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:24:27,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:24:27,468 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:24:27,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2024-02-09 23:24:27,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:24:27,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:24:27,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:24:27,761 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:24:27,762 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:24:27,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/map-incr-decr.bpl [2024-02-09 23:24:27,764 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/map-incr-decr.bpl' [2024-02-09 23:24:27,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:24:27,788 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:24:27,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:24:27,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:24:27,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:24:27,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,858 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-09 23:24:27,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:24:27,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:24:27,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:24:27,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:24:27,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:24:27,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:24:27,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:24:27,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:24:27,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/1) ... [2024-02-09 23:24:27,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:27,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:27,917 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 23:24:27,923 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 23:24:27,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-02-09 23:24:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-09 23:24:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-09 23:24:27,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-02-09 23:24:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-09 23:24:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-09 23:24:27,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:24:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:24:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:24:27,963 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 23:24:28,016 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:24:28,020 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:24:28,154 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:24:28,160 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:24:28,160 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:24:28,161 INFO L201 PluginConnector]: Adding new model map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:24:28 BoogieIcfgContainer [2024-02-09 23:24:28,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:24:28,162 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:24:28,162 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:24:28,165 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:24:28,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:24:28,166 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:27" (1/2) ... [2024-02-09 23:24:28,167 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cf638ef and model type map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:24:28, skipping insertion in model container [2024-02-09 23:24:28,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:24:28,167 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:24:28" (2/2) ... [2024-02-09 23:24:28,169 INFO L332 chiAutomizerObserver]: Analyzing ICFG map-incr-decr.bpl [2024-02-09 23:24:28,217 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-09 23:24:28,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 66 flow [2024-02-09 23:24:28,254 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-02-09 23:24:28,254 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-09 23:24:28,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-02-09 23:24:28,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 66 flow [2024-02-09 23:24:28,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 22 transitions, 56 flow [2024-02-09 23:24:28,271 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:24:28,272 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:24:28,272 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:24:28,272 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:24:28,272 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:24:28,272 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:24:28,272 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:24:28,272 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 23:24:28,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2024-02-09 23:24:28,302 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 33 [2024-02-09 23:24:28,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:28,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:28,306 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-02-09 23:24:28,306 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:28,306 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:24:28,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 55 states, but on-demand construction may add more states [2024-02-09 23:24:28,310 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 33 [2024-02-09 23:24:28,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:28,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:28,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-02-09 23:24:28,311 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:28,315 INFO L748 eck$LassoCheckResult]: Stem: 32#[$Ultimate##0]don't care [43] $Ultimate##0-->L17: Formula: (= v_B_1 v_A_5) InVars {A=v_A_5} OutVars{A=v_A_5, B=v_B_1} AuxVars[] AssignedVars[B] 35#[L17]don't care [35] L17-->L18: Formula: (and (<= 0 v_k_1) (< v_k_1 v_N_5)) InVars {k=v_k_1, N=v_N_5} OutVars{k=v_k_1, N=v_N_5} AuxVars[] AssignedVars[] 37#[L18]don't care [37] L18-->L20: Formula: (= (select v_A_6 v_k_2) v_ULTIMATE.start_x_1) InVars {A=v_A_6, k=v_k_2} OutVars{A=v_A_6, ULTIMATE.start_x=v_ULTIMATE.start_x_1, k=v_k_2} AuxVars[] AssignedVars[ULTIMATE.start_x] 39#[L20]don't care [66] L20-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 41#[L20-1, $Ultimate##0]don't care [52] $Ultimate##0-->L34-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 43#[L20-1, L34-1]don't care [2024-02-09 23:24:28,315 INFO L750 eck$LassoCheckResult]: Loop: 43#[L20-1, L34-1]don't care [54] L34-1-->L35: Formula: (< v_thread1Thread1of1ForFork0_i_5 v_N_1) InVars {thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_5, N=v_N_1} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_5, N=v_N_1} AuxVars[] AssignedVars[] 51#[L20-1, L35]don't care [56] L35-->L37: Formula: (= v_A_1 (store v_A_2 v_thread1Thread1of1ForFork0_i_7 (+ (select v_A_2 v_thread1Thread1of1ForFork0_i_7) 1))) InVars {A=v_A_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_7} OutVars{A=v_A_1, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_7} AuxVars[] AssignedVars[A] 63#[L20-1, L37]don't care [57] L37-->L34-1: Formula: (= v_thread1Thread1of1ForFork0_i_10 (+ v_thread1Thread1of1ForFork0_i_9 1)) InVars {thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_9} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_10} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 43#[L20-1, L34-1]don't care [2024-02-09 23:24:28,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash 69420894, now seen corresponding path program 1 times [2024-02-09 23:24:28,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:28,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727365015] [2024-02-09 23:24:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:28,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:28,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:28,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:28,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:28,436 INFO L85 PathProgramCache]: Analyzing trace with hash 83478, now seen corresponding path program 1 times [2024-02-09 23:24:28,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:28,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536883065] [2024-02-09 23:24:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:28,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:28,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:28,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:28,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2056329831, now seen corresponding path program 1 times [2024-02-09 23:24:28,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:28,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485112757] [2024-02-09 23:24:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:28,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:28,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:28,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:28,597 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:28,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:28,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:28,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:28,598 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:28,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:28,598 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:28,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:28,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: map-incr-decr.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:24:28,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:28,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:28,614 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 23:24:28,625 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 23:24:28,729 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:28,732 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:28,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:28,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:28,739 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 23:24:28,741 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 23:24:28,744 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 23:24:28,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:28,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:28,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:28,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:28,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:28,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:28,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:28,772 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 23:24:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:28,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:28,774 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 23:24:28,777 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 23:24:28,777 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 23:24:28,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:28,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:28,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:28,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:28,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:28,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:28,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:28,816 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-02-09 23:24:28,816 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:24:28,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:28,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:28,820 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 23:24:28,821 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 23:24:28,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:28,831 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:28,832 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:28,832 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_i, N) = -1*thread1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2024-02-09 23:24:28,836 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 23:24:28,839 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:28,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:28,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:28,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:28,888 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:28,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:28,905 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 23:24:28,930 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 23:24:28,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 55 states, but on-demand construction may add more states 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 23:24:29,022 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 55 states, but on-demand construction may add more states. 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 130 states and 300 transitions. Complement of second has 6 states. [2024-02-09 23:24:29,024 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 23:24:29,031 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 23:24:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-02-09 23:24:29,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 3 letters. [2024-02-09 23:24:29,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:29,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 8 letters. Loop has 3 letters. [2024-02-09 23:24:29,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:29,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 6 letters. [2024-02-09 23:24:29,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:29,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 300 transitions. [2024-02-09 23:24:29,047 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2024-02-09 23:24:29,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 72 states and 167 transitions. [2024-02-09 23:24:29,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2024-02-09 23:24:29,053 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-02-09 23:24:29,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 167 transitions. [2024-02-09 23:24:29,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 23:24:29,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 72 states and 167 transitions. [2024-02-09 23:24:29,066 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 23:24:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 167 transitions. [2024-02-09 23:24:29,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2024-02-09 23:24:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 2.3278688524590163) internal successors, (142), 60 states have internal predecessors, (142), 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 23:24:29,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 142 transitions. [2024-02-09 23:24:29,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 142 transitions. [2024-02-09 23:24:29,088 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 142 transitions. [2024-02-09 23:24:29,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:24:29,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 142 transitions. [2024-02-09 23:24:29,090 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2024-02-09 23:24:29,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:29,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:29,090 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-02-09 23:24:29,090 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:24:29,090 INFO L748 eck$LassoCheckResult]: Stem: 439#[$Ultimate##0]don't care [43] $Ultimate##0-->L17: Formula: (= v_B_1 v_A_5) InVars {A=v_A_5} OutVars{A=v_A_5, B=v_B_1} AuxVars[] AssignedVars[B] 433#[L17]don't care [35] L17-->L18: Formula: (and (<= 0 v_k_1) (< v_k_1 v_N_5)) InVars {k=v_k_1, N=v_N_5} OutVars{k=v_k_1, N=v_N_5} AuxVars[] AssignedVars[] 435#[L18]don't care [37] L18-->L20: Formula: (= (select v_A_6 v_k_2) v_ULTIMATE.start_x_1) InVars {A=v_A_6, k=v_k_2} OutVars{A=v_A_6, ULTIMATE.start_x=v_ULTIMATE.start_x_1, k=v_k_2} AuxVars[] AssignedVars[ULTIMATE.start_x] 405#[L20]don't care [66] L20-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 407#[L20-1, $Ultimate##0]don't care [69] L20-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_14, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_i, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 389#[$Ultimate##0, $Ultimate##0, L21]don't care [58] $Ultimate##0-->L47-1: Formula: (= v_thread2Thread1of1ForFork1_i_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_i] 393#[L47-1, $Ultimate##0, L21]don't care [2024-02-09 23:24:29,091 INFO L750 eck$LassoCheckResult]: Loop: 393#[L47-1, $Ultimate##0, L21]don't care [60] L47-1-->L48: Formula: (< v_thread2Thread1of1ForFork1_i_5 v_N_4) InVars {thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_5, N=v_N_4} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_5, N=v_N_4} AuxVars[] AssignedVars[] 325#[L48, $Ultimate##0, L21]don't care [62] L48-->L50: Formula: (= (store v_A_4 v_thread2Thread1of1ForFork1_i_7 (+ (- 1) (select v_A_4 v_thread2Thread1of1ForFork1_i_7))) v_A_3) InVars {A=v_A_4, thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_7} OutVars{A=v_A_3, thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_7} AuxVars[] AssignedVars[A] 329#[L50, $Ultimate##0, L21]don't care [63] L50-->L47-1: Formula: (= (+ v_thread2Thread1of1ForFork1_i_9 1) v_thread2Thread1of1ForFork1_i_10) InVars {thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_9} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_10} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_i] 393#[L47-1, $Ultimate##0, L21]don't care [2024-02-09 23:24:29,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2142918997, now seen corresponding path program 1 times [2024-02-09 23:24:29,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:29,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253381072] [2024-02-09 23:24:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:29,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:29,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:29,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:29,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash 89436, now seen corresponding path program 1 times [2024-02-09 23:24:29,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:29,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230653930] [2024-02-09 23:24:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:29,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:29,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:29,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:29,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 694107762, now seen corresponding path program 1 times [2024-02-09 23:24:29,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:29,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879356114] [2024-02-09 23:24:29,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:29,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:29,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:29,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:29,173 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:29,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:29,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:29,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:29,173 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:29,173 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:29,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:29,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: map-incr-decr.bpl_BEv2_Iteration2_Lasso [2024-02-09 23:24:29,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:29,174 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:29,175 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 23:24:29,177 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 23:24:29,179 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 23:24:29,199 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 23:24:29,201 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 23:24:29,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:29,266 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:29,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:29,282 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 23:24:29,282 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 23:24:29,285 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 23:24:29,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:29,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:29,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:29,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:29,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:29,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:29,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:29,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:29,314 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 23:24:29,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:29,316 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 23:24:29,321 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 23:24:29,321 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 23:24:29,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:29,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:29,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:29,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:29,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:29,334 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:29,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:29,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-02-09 23:24:29,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:29,378 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 23:24:29,431 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 23:24:29,437 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 23:24:29,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:29,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:29,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:29,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:29,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:29,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:29,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:29,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:29,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-02-09 23:24:29,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:29,463 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 23:24:29,465 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 23:24:29,468 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 23:24:29,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:29,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:29,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:29,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:29,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:29,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:29,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:29,510 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 23:24:29,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:29,525 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 23:24:29,534 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 23:24:29,534 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 23:24:29,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:29,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:29,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:29,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:29,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:29,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:29,560 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:29,567 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-02-09 23:24:29,567 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:24:29,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:29,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:29,569 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 23:24:29,585 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 23:24:29,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:29,603 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:29,603 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:29,603 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_i, N) = -1*thread2Thread1of1ForFork1_i + 1*N Supporting invariants [] [2024-02-09 23:24:29,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:29,622 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:29,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:29,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:29,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:29,658 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:29,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:29,682 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 23:24:29,683 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 23:24:29,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 142 transitions. cyclomatic complexity: 91 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 23:24:29,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 142 transitions. cyclomatic complexity: 91. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 147 states and 360 transitions. Complement of second has 6 states. [2024-02-09 23:24:29,715 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 23:24:29,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 23:24:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2024-02-09 23:24:29,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 6 letters. Loop has 3 letters. [2024-02-09 23:24:29,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:29,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 9 letters. Loop has 3 letters. [2024-02-09 23:24:29,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:29,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 6 letters. Loop has 6 letters. [2024-02-09 23:24:29,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:29,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 360 transitions. [2024-02-09 23:24:29,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:24:29,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 0 states and 0 transitions. [2024-02-09 23:24:29,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-02-09 23:24:29,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-02-09 23:24:29,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-02-09 23:24:29,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:24:29,719 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:29,719 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:29,719 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:29,719 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:24:29,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-02-09 23:24:29,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:24:29,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-02-09 23:24:29,725 INFO L201 PluginConnector]: Adding new model map-incr-decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:24:29 BoogieIcfgContainer [2024-02-09 23:24:29,725 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:24:29,726 INFO L158 Benchmark]: Toolchain (without parser) took 1937.88ms. Allocated memory was 161.5MB in the beginning and 300.9MB in the end (delta: 139.5MB). Free memory was 123.7MB in the beginning and 233.9MB in the end (delta: -110.1MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB. [2024-02-09 23:24:29,726 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 124.8MB in the end (delta: 63.0kB). There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:24:29,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.76ms. Allocated memory was 161.5MB in the beginning and 300.9MB in the end (delta: 139.5MB). Free memory was 123.6MB in the beginning and 278.7MB in the end (delta: -155.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-02-09 23:24:29,727 INFO L158 Benchmark]: Boogie Preprocessor took 18.28ms. Allocated memory is still 300.9MB. Free memory was 278.7MB in the beginning and 277.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:24:29,727 INFO L158 Benchmark]: RCFGBuilder took 281.34ms. Allocated memory is still 300.9MB. Free memory was 277.6MB in the beginning and 267.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-02-09 23:24:29,727 INFO L158 Benchmark]: BuchiAutomizer took 1562.92ms. Allocated memory is still 300.9MB. Free memory was 267.6MB in the beginning and 233.9MB in the end (delta: 33.7MB). Peak memory consumption was 34.7MB. Max. memory is 8.0GB. [2024-02-09 23:24:29,729 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 0.12ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 124.8MB in the end (delta: 63.0kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.76ms. Allocated memory was 161.5MB in the beginning and 300.9MB in the end (delta: 139.5MB). Free memory was 123.6MB in the beginning and 278.7MB in the end (delta: -155.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.28ms. Allocated memory is still 300.9MB. Free memory was 278.7MB in the beginning and 277.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 281.34ms. Allocated memory is still 300.9MB. Free memory was 277.6MB in the beginning and 267.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1562.92ms. Allocated memory is still 300.9MB. Free memory was 267.6MB in the beginning and 233.9MB in the end (delta: 33.7MB). Peak memory consumption was 34.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 40 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital47 mio100 ax100 hnf100 lsp87 ukn70 mio100 lsp79 div100 bol100 ite100 ukn100 eq143 hnf93 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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 23:24:29,748 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 23:24:29,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...