/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/sum_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:25:15,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:25:15,096 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 23:25:15,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:25:15,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:25:15,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:25:15,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:25:15,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:25:15,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:25:15,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:25:15,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:25:15,137 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:25:15,138 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:25:15,139 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:25:15,139 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:25:15,139 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:25:15,139 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:25:15,139 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:25:15,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:25:15,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:25:15,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:25:15,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:25:15,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:25:15,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:25:15,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:25:15,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:25:15,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:25:15,142 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:25:15,142 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:25:15,142 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:25:15,143 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:25:15,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:25:15,143 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:25:15,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:25:15,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:25:15,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:25:15,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:25:15,144 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:25:15,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2024-02-09 23:25:15,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:25:15,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:25:15,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:25:15,425 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:25:15,426 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:25:15,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl [2024-02-09 23:25:15,428 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl' [2024-02-09 23:25:15,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:25:15,454 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:25:15,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:25:15,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:25:15,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:25:15,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,514 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-09 23:25:15,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:25:15,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:25:15,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:25:15,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:25:15,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:25:15,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:25:15,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:25:15,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:25:15,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/1) ... [2024-02-09 23:25:15,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:15,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:15,586 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 23:25:15,630 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 23:25:15,662 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:25:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:25:15,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:25:15,663 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2024-02-09 23:25:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2024-02-09 23:25:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2024-02-09 23:25:15,663 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2024-02-09 23:25:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2024-02-09 23:25:15,664 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2024-02-09 23:25:15,664 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 23:25:15,706 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:25:15,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:25:15,829 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:25:15,837 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:25:15,837 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:25:15,839 INFO L201 PluginConnector]: Adding new model sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:25:15 BoogieIcfgContainer [2024-02-09 23:25:15,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:25:15,839 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:25:15,839 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:25:15,842 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:25:15,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:25:15,843 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:25:15" (1/2) ... [2024-02-09 23:25:15,844 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36b6a9c1 and model type sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:25:15, skipping insertion in model container [2024-02-09 23:25:15,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:25:15,844 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:25:15" (2/2) ... [2024-02-09 23:25:15,846 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum_diff_incr_decr.bpl [2024-02-09 23:25:15,911 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-09 23:25:15,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 25 transitions, 64 flow [2024-02-09 23:25:15,962 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2024-02-09 23:25:15,962 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-09 23:25:15,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2024-02-09 23:25:15,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 25 transitions, 64 flow [2024-02-09 23:25:15,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-02-09 23:25:15,980 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:25:15,980 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:25:15,981 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:25:15,981 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:25:15,981 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:25:15,981 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:25:15,981 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:25:15,982 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 23:25:15,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2024-02-09 23:25:16,030 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 40 [2024-02-09 23:25:16,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:25:16,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:25:16,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-02-09 23:25:16,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:25:16,034 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:25:16,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 60 states, but on-demand construction may add more states [2024-02-09 23:25:16,043 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 40 [2024-02-09 23:25:16,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:25:16,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:25:16,045 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-02-09 23:25:16,046 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 23:25:16,051 INFO L748 eck$LassoCheckResult]: Stem: 31#[$Ultimate##0]don't care [42] $Ultimate##0-->L45: Formula: (and (< v_ULTIMATE.start_m_1 v_N_1) (<= 0 v_ULTIMATE.start_m_1)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} AuxVars[] AssignedVars[] 34#[L45]don't care [67] L45-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_14, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0] 36#[L45-1, $Ultimate##0]don't care [52] $Ultimate##0-->L16-1: Formula: (= v_T1Thread1of1ForFork0_i_1 0) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 38#[L45-1, L16-1]don't care [2024-02-09 23:25:16,052 INFO L750 eck$LassoCheckResult]: Loop: 38#[L45-1, L16-1]don't care [54] L16-1-->L17: Formula: (< v_T1Thread1of1ForFork0_i_5 v_N_3) InVars {T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_5, N=v_N_3} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_5, N=v_N_3} AuxVars[] AssignedVars[] 46#[L45-1, L17]don't care [56] L17-->L17-1: Formula: (and (= v_A_7 (store v_A_8 v_T1Thread1of1ForFork0_i_7 (+ (select v_A_8 v_T1Thread1of1ForFork0_i_7) 1))) (= (store v_B_8 v_T1Thread1of1ForFork0_i_7 (+ (- 1) (select v_B_8 v_T1Thread1of1ForFork0_i_7))) v_B_7)) InVars {A=v_A_8, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_7, B=v_B_8} OutVars{A=v_A_7, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_7, B=v_B_7} AuxVars[] AssignedVars[A, B] 58#[L45-1, L17-1]don't care [57] L17-1-->L16-1: Formula: (= (+ v_T1Thread1of1ForFork0_i_9 1) v_T1Thread1of1ForFork0_i_10) InVars {T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_9} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_10} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 38#[L45-1, L16-1]don't care [2024-02-09 23:25:16,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash 72282, now seen corresponding path program 1 times [2024-02-09 23:25:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:25:16,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060431666] [2024-02-09 23:25:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:25:16,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:25:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:25:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:25:16,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,142 INFO L85 PathProgramCache]: Analyzing trace with hash 83478, now seen corresponding path program 1 times [2024-02-09 23:25:16,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:25:16,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833039739] [2024-02-09 23:25:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:25:16,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:25:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:25:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:25:16,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2141560547, now seen corresponding path program 1 times [2024-02-09 23:25:16,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:25:16,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681144099] [2024-02-09 23:25:16,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:25:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:25:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:25:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:25:16,240 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:25:16,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:25:16,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:25:16,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:25:16,241 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:25:16,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:25:16,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:25:16,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:25:16,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:25:16,242 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:25:16,253 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 23:25:16,263 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 23:25:16,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:25:16,321 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:25:16,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:16,324 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 23:25:16,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-02-09 23:25:16,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:16,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:16,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:16,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:16,337 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 23:25:16,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:25:16,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:25:16,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:16,368 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 23:25:16,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:16,371 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 23:25:16,373 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 23:25:16,374 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 23:25:16,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:16,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:16,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:16,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:16,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:25:16,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:25:16,429 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:25:16,440 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2024-02-09 23:25:16,440 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:25:16,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:16,445 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 23:25:16,452 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 23:25:16,456 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:25:16,475 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:25:16,475 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:25:16,476 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2024-02-09 23:25:16,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-02-09 23:25:16,484 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:25:16,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:25:16,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:25:16,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:25:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:25:16,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:25:16,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:25:16,575 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 23:25:16,598 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 23:25:16,600 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 60 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 23:25:16,645 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 23:25:16,688 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 60 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 146 states and 342 transitions. Complement of second has 6 states. [2024-02-09 23:25:16,691 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 23:25:16,694 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 23:25:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2024-02-09 23:25:16,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 3 letters. Loop has 3 letters. [2024-02-09 23:25:16,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:25:16,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 6 letters. Loop has 3 letters. [2024-02-09 23:25:16,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:25:16,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 3 letters. Loop has 6 letters. [2024-02-09 23:25:16,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:25:16,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 342 transitions. [2024-02-09 23:25:16,701 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 28 [2024-02-09 23:25:16,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 85 states and 201 transitions. [2024-02-09 23:25:16,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2024-02-09 23:25:16,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-02-09 23:25:16,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 201 transitions. [2024-02-09 23:25:16,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 23:25:16,710 INFO L218 hiAutomatonCegarLoop]: Abstraction has 85 states and 201 transitions. [2024-02-09 23:25:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 201 transitions. [2024-02-09 23:25:16,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2024-02-09 23:25:16,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 2.380281690140845) internal successors, (169), 70 states have internal predecessors, (169), 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 23:25:16,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 169 transitions. [2024-02-09 23:25:16,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 169 transitions. [2024-02-09 23:25:16,735 INFO L428 stractBuchiCegarLoop]: Abstraction has 71 states and 169 transitions. [2024-02-09 23:25:16,735 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:25:16,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 169 transitions. [2024-02-09 23:25:16,736 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 28 [2024-02-09 23:25:16,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:25:16,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:25:16,736 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-02-09 23:25:16,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-02-09 23:25:16,737 INFO L748 eck$LassoCheckResult]: Stem: 472#[$Ultimate##0]don't care [42] $Ultimate##0-->L45: Formula: (and (< v_ULTIMATE.start_m_1 v_N_1) (<= 0 v_ULTIMATE.start_m_1)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} AuxVars[] AssignedVars[] 474#[L45]don't care [67] L45-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_14, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0] 406#[L45-1, $Ultimate##0]don't care [70] L45-1-->$Ultimate##0: Formula: (and (= v_T2Thread1of1ForFork1_thidvar1_2 2) (= v_T2Thread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2, T2Thread1of1ForFork1_thidvar1=v_T2Thread1of1ForFork1_thidvar1_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_16} AuxVars[] AssignedVars[T2Thread1of1ForFork1_thidvar0, T2Thread1of1ForFork1_thidvar1, T2Thread1of1ForFork1_j] 408#[$Ultimate##0, $Ultimate##0, L46]don't care [58] $Ultimate##0-->L31-1: Formula: (= v_T2Thread1of1ForFork1_j_1 0) InVars {} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[T2Thread1of1ForFork1_j] 432#[$Ultimate##0, L31-1, L46]don't care [2024-02-09 23:25:16,737 INFO L750 eck$LassoCheckResult]: Loop: 432#[$Ultimate##0, L31-1, L46]don't care [60] L31-1-->L32: Formula: (< v_T2Thread1of1ForFork1_j_5 v_N_4) InVars {T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_5, N=v_N_4} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_5, N=v_N_4} AuxVars[] AssignedVars[] 444#[$Ultimate##0, L46, L32]don't care [62] L32-->L33: Formula: (= (store v_C_4 v_T2Thread1of1ForFork1_j_7 (+ (select v_B_5 v_T2Thread1of1ForFork1_j_7) (select v_A_5 v_T2Thread1of1ForFork1_j_7))) v_C_3) InVars {A=v_A_5, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_7, C=v_C_4, B=v_B_5} OutVars{A=v_A_5, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_7, C=v_C_3, B=v_B_5} AuxVars[] AssignedVars[C] 462#[$Ultimate##0, L46, L33]don't care [63] L33-->L34: Formula: (= (store v_D_2 v_T2Thread1of1ForFork1_j_9 (+ (select v_A_6 v_T2Thread1of1ForFork1_j_9) (* (- 1) (select v_B_6 v_T2Thread1of1ForFork1_j_9)))) v_D_1) InVars {A=v_A_6, D=v_D_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_9, B=v_B_6} OutVars{A=v_A_6, D=v_D_1, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_9, B=v_B_6} AuxVars[] AssignedVars[D] 450#[$Ultimate##0, L34, L46]don't care [64] L34-->L31-1: Formula: (= v_T2Thread1of1ForFork1_j_12 (+ v_T2Thread1of1ForFork1_j_11 1)) InVars {T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_11} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_12} AuxVars[] AssignedVars[T2Thread1of1ForFork1_j] 432#[$Ultimate##0, L31-1, L46]don't care [2024-02-09 23:25:16,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2241358, now seen corresponding path program 1 times [2024-02-09 23:25:16,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:25:16,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243048136] [2024-02-09 23:25:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:25:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:25:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:25:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:25:16,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2772580, now seen corresponding path program 1 times [2024-02-09 23:25:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:25:16,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624869818] [2024-02-09 23:25:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:25:16,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:25:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:25:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:25:16,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:16,765 INFO L85 PathProgramCache]: Analyzing trace with hash -231206095, now seen corresponding path program 1 times [2024-02-09 23:25:16,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:25:16,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520076114] [2024-02-09 23:25:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:25:16,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:25:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:25:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:25:16,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:25:16,861 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:25:16,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:25:16,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:25:16,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:25:16,862 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:25:16,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:25:16,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:25:16,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2024-02-09 23:25:16,862 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:25:16,862 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:25:16,863 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 23:25:16,868 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 23:25:16,870 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 23:25:16,872 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 23:25:16,874 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 23:25:16,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:25:16,935 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:25:16,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:16,949 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 23:25:16,952 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 23:25:16,953 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 23:25:16,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:16,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:16,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:16,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:16,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:25:16,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:25:16,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:16,986 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 23:25:16,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:16,987 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 23:25:17,000 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 23:25:17,027 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 23:25:17,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:17,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:25:17,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:17,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:17,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:17,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:25:17,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:25:17,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:17,040 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 23:25:17,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:17,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:17,041 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 23:25:17,044 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 23:25:17,047 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 23:25:17,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:17,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:17,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:17,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:17,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:25:17,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:25:17,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:17,076 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 23:25:17,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:17,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:17,078 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 23:25:17,082 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 23:25:17,083 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 23:25:17,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:17,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:17,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:17,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:17,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:25:17,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:25:17,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:17,113 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 23:25:17,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:17,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:17,121 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 23:25:17,122 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 23:25:17,123 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 23:25:17,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:17,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:25:17,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:17,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:17,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:17,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:25:17,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:25:17,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:17,137 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 23:25:17,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:17,138 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 23:25:17,142 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 23:25:17,143 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 23:25:17,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:17,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:25:17,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:17,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:17,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:17,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:25:17,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:25:17,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:25:17,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-02-09 23:25:17,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:17,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:17,158 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 23:25:17,159 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 23:25:17,161 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 23:25:17,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:25:17,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:25:17,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:25:17,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:25:17,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:25:17,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:25:17,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:25:17,231 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-02-09 23:25:17,231 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:25:17,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:25:17,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:25:17,292 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 23:25:17,298 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:25:17,306 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 23:25:17,325 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:25:17,325 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:25:17,325 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2024-02-09 23:25:17,331 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 23:25:17,332 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:25:17,347 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:25:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:25:17,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:25:17,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:25:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:25:17,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:25:17,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:25:17,401 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 23:25:17,402 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 23:25:17,402 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 169 transitions. cyclomatic complexity: 108 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 23:25:17,446 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 169 transitions. cyclomatic complexity: 108. 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 176 states and 434 transitions. Complement of second has 6 states. [2024-02-09 23:25:17,447 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 23:25:17,448 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 23:25:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2024-02-09 23:25:17,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 4 letters. Loop has 4 letters. [2024-02-09 23:25:17,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:25:17,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 8 letters. Loop has 4 letters. [2024-02-09 23:25:17,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:25:17,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 4 letters. Loop has 8 letters. [2024-02-09 23:25:17,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:25:17,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 434 transitions. [2024-02-09 23:25:17,451 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:25:17,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 0 states and 0 transitions. [2024-02-09 23:25:17,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-02-09 23:25:17,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-02-09 23:25:17,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-02-09 23:25:17,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:25:17,451 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:25:17,451 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:25:17,451 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:25:17,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:25:17,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-02-09 23:25:17,451 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:25:17,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-02-09 23:25:17,457 INFO L201 PluginConnector]: Adding new model sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:25:17 BoogieIcfgContainer [2024-02-09 23:25:17,457 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:25:17,458 INFO L158 Benchmark]: Toolchain (without parser) took 2003.39ms. Allocated memory is still 200.3MB. Free memory was 147.3MB in the beginning and 131.3MB in the end (delta: 16.0MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2024-02-09 23:25:17,458 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 200.3MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:25:17,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.25ms. Allocated memory is still 200.3MB. Free memory was 147.2MB in the beginning and 181.5MB in the end (delta: -34.3MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2024-02-09 23:25:17,459 INFO L158 Benchmark]: Boogie Preprocessor took 14.26ms. Allocated memory is still 200.3MB. Free memory was 181.5MB in the beginning and 180.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-02-09 23:25:17,459 INFO L158 Benchmark]: RCFGBuilder took 306.31ms. Allocated memory is still 200.3MB. Free memory was 180.4MB in the beginning and 170.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-02-09 23:25:17,459 INFO L158 Benchmark]: BuchiAutomizer took 1617.99ms. Allocated memory is still 200.3MB. Free memory was 170.4MB in the beginning and 131.3MB in the end (delta: 39.1MB). Peak memory consumption was 38.4MB. Max. memory is 8.0GB. [2024-02-09 23:25:17,461 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 0.11ms. Allocated memory is still 200.3MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.25ms. Allocated memory is still 200.3MB. Free memory was 147.2MB in the beginning and 181.5MB in the end (delta: -34.3MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.26ms. Allocated memory is still 200.3MB. Free memory was 181.5MB in the beginning and 180.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 306.31ms. Allocated memory is still 200.3MB. Free memory was 180.4MB in the beginning and 170.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1617.99ms. Allocated memory is still 200.3MB. Free memory was 170.4MB in the beginning and 131.3MB in the end (delta: 39.1MB). Peak memory consumption was 38.4MB. 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 N + -1 * i 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 1.5s 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, 14 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, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 36 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital52 mio100 ax100 hnf100 lsp88 ukn50 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf93 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms 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 23:25:17,495 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 23:25:17,681 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...