/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:43,683 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:43,728 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:12:43,748 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:43,748 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:43,749 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:43,750 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:43,750 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:43,751 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:43,751 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:43,751 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:43,752 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:43,752 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:43,752 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:43,753 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:43,753 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:43,753 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:43,754 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:43,754 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:43,754 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:43,754 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:43,755 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:43,755 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:43,756 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:43,756 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:43,756 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:43,756 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:43,757 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:43,757 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:43,757 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:43,757 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:43,758 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:43,758 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:43,759 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:43,759 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:43,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:44,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:44,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:44,006 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:44,007 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:44,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl [2023-10-12 17:12:44,008 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl' [2023-10-12 17:12:44,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:44,035 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:44,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:44,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:44,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:44,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,060 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:44,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:44,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:44,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:44,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:44,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:44,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:44,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:44,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:44,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/1) ... [2023-10-12 17:12:44,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:44,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:44,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:44,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:12:44,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:44,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:12:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:12:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:12:44,160 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:12:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:12:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:12:44,161 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:12:44,215 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:44,217 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:44,315 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:44,325 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:44,325 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:12:44,327 INFO L201 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:44 BoogieIcfgContainer [2023-10-12 17:12:44,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:44,328 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:44,328 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:44,332 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:44,332 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:44,333 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:44" (1/2) ... [2023-10-12 17:12:44,334 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16db655b and model type sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:44, skipping insertion in model container [2023-10-12 17:12:44,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:44,334 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:44" (2/2) ... [2023-10-12 17:12:44,335 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum2_diff_incr_decr.bpl [2023-10-12 17:12:44,390 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:12:44,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 70 flow [2023-10-12 17:12:44,443 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2023-10-12 17:12:44,443 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:44,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2023-10-12 17:12:44,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 70 flow [2023-10-12 17:12:44,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2023-10-12 17:12:44,454 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:44,465 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 58 flow [2023-10-12 17:12:44,468 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 58 flow [2023-10-12 17:12:44,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 58 flow [2023-10-12 17:12:44,476 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2023-10-12 17:12:44,476 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:44,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2023-10-12 17:12:44,477 INFO L119 LiptonReduction]: Number of co-enabled transitions 160 [2023-10-12 17:12:44,854 INFO L134 LiptonReduction]: Checked pairs total: 123 [2023-10-12 17:12:44,854 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:12:44,874 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:44,874 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:44,874 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:44,874 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:44,875 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:44,875 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:44,875 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:44,876 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:44,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:44,904 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:12:44,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:44,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:44,909 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:44,909 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:44,910 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:44,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 18 states, but on-demand construction may add more states [2023-10-12 17:12:44,912 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:12:44,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:44,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:44,912 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:44,912 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:44,917 INFO L748 eck$LassoCheckResult]: Stem: 33#[$Ultimate##0]don't care [74] $Ultimate##0-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_16, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_8} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0, T1Thread1of1ForFork0_sum] 36#[$Ultimate##0, L46]don't care [80] $Ultimate##0-->L17-1: Formula: (and (= v_T1Thread1of1ForFork0_sum_11 0) (= v_T1Thread1of1ForFork0_i_17 0)) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_17, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_11} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_sum] 38#[L46, L17-1]don't care [2023-10-12 17:12:44,917 INFO L750 eck$LassoCheckResult]: Loop: 38#[L46, L17-1]don't care [89] L17-1-->L17-1: Formula: (and (= (+ v_T1Thread1of1ForFork0_i_32 1) v_T1Thread1of1ForFork0_i_31) (= v_T1Thread1of1ForFork0_sum_17 (+ (select v_B_28 v_T1Thread1of1ForFork0_i_32) v_T1Thread1of1ForFork0_sum_18 (select v_A_28 v_T1Thread1of1ForFork0_i_32))) (= (store v_A_29 v_T1Thread1of1ForFork0_i_32 (+ (select v_A_29 v_T1Thread1of1ForFork0_i_32) 1)) v_A_28) (< v_T1Thread1of1ForFork0_i_32 v_N_15) (= v_B_28 (store v_B_29 v_T1Thread1of1ForFork0_i_32 (+ (- 1) (select v_B_29 v_T1Thread1of1ForFork0_i_32))))) InVars {A=v_A_29, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_32, N=v_N_15, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_18, B=v_B_29} OutVars{A=v_A_28, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_31, N=v_N_15, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_17, B=v_B_28} AuxVars[] AssignedVars[A, T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_sum, B] 38#[L46, L17-1]don't care [2023-10-12 17:12:44,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:44,922 INFO L85 PathProgramCache]: Analyzing trace with hash 3335, now seen corresponding path program 1 times [2023-10-12 17:12:44,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:44,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983690547] [2023-10-12 17:12:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:44,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:44,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,007 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 1 times [2023-10-12 17:12:45,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100194153] [2023-10-12 17:12:45,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,060 INFO L85 PathProgramCache]: Analyzing trace with hash 103474, now seen corresponding path program 1 times [2023-10-12 17:12:45,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195602823] [2023-10-12 17:12:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,196 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:45,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:45,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:45,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:45,198 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:45,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:45,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:45,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:45,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:45,198 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:45,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,326 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:45,330 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:45,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:45,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:12:45,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:45,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:45,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:45,390 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:45,418 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:12:45,418 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:12:45,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:45,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:12:45,461 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:45,480 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:45,481 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:45,482 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2023-10-12 17:12:45,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:12:45,495 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:45,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:45,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:45,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:45,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:45,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:45,585 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:45,587 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 18 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:45,648 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 18 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 44 states and 100 transitions. Complement of second has 4 states. [2023-10-12 17:12:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-10-12 17:12:45,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:12:45,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:12:45,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:12:45,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:45,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 100 transitions. [2023-10-12 17:12:45,667 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:45,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 22 states and 52 transitions. [2023-10-12 17:12:45,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-10-12 17:12:45,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-10-12 17:12:45,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 52 transitions. [2023-10-12 17:12:45,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:45,676 INFO L219 hiAutomatonCegarLoop]: Abstraction has 22 states and 52 transitions. [2023-10-12 17:12:45,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 52 transitions. [2023-10-12 17:12:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2023-10-12 17:12:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 46 transitions. [2023-10-12 17:12:45,696 INFO L241 hiAutomatonCegarLoop]: Abstraction has 19 states and 46 transitions. [2023-10-12 17:12:45,696 INFO L430 stractBuchiCegarLoop]: Abstraction has 19 states and 46 transitions. [2023-10-12 17:12:45,696 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:12:45,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 46 transitions. [2023-10-12 17:12:45,697 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:45,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:45,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:45,698 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:45,698 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:45,698 INFO L748 eck$LassoCheckResult]: Stem: 163#[$Ultimate##0]don't care [74] $Ultimate##0-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_16, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_8} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0, T1Thread1of1ForFork0_sum] 159#[$Ultimate##0, L46]don't care [77] L46-->$Ultimate##0: Formula: (and (= v_T2Thread1of1ForFork1_thidvar1_2 2) (= v_T2Thread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_8, T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2, T2Thread1of1ForFork1_thidvar1=v_T2Thread1of1ForFork1_thidvar1_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_16} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, T2Thread1of1ForFork1_thidvar0, T2Thread1of1ForFork1_thidvar1, T2Thread1of1ForFork1_j] 149#[$Ultimate##0, $Ultimate##0, L47]don't care [86] $Ultimate##0-->L34-1: Formula: (and (= v_T2Thread1of1ForFork1_sum_11 0) (= v_T2Thread1of1ForFork1_j_23 0)) InVars {} OutVars{T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_11, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_23} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, T2Thread1of1ForFork1_j] 153#[L34-1, $Ultimate##0, L47]don't care [2023-10-12 17:12:45,699 INFO L750 eck$LassoCheckResult]: Loop: 153#[L34-1, $Ultimate##0, L47]don't care [90] L34-1-->L34-1: Formula: (let ((.cse1 (select v_A_36 v_T2Thread1of1ForFork1_j_36)) (.cse0 (select v_B_36 v_T2Thread1of1ForFork1_j_36))) (and (= (store v_D_16 v_T2Thread1of1ForFork1_j_36 (+ (* (- 1) .cse0) .cse1)) v_D_15) (= (+ v_T2Thread1of1ForFork1_sum_22 .cse1 .cse0) v_T2Thread1of1ForFork1_sum_21) (< v_T2Thread1of1ForFork1_j_36 v_N_19) (= (+ v_T2Thread1of1ForFork1_j_36 1) v_T2Thread1of1ForFork1_j_35))) InVars {A=v_A_36, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_22, N=v_N_19, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_36, B=v_B_36} OutVars{A=v_A_36, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_21, N=v_N_19, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_35, B=v_B_36} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, D, T2Thread1of1ForFork1_j] 153#[L34-1, $Ultimate##0, L47]don't care [2023-10-12 17:12:45,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash 103378, now seen corresponding path program 1 times [2023-10-12 17:12:45,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307650259] [2023-10-12 17:12:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,709 INFO L85 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2023-10-12 17:12:45,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754244472] [2023-10-12 17:12:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash 3204808, now seen corresponding path program 1 times [2023-10-12 17:12:45,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:45,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157296010] [2023-10-12 17:12:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:45,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:45,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:45,813 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:45,813 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:45,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:45,814 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:45,814 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:45,814 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,814 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:45,814 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:45,814 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:12:45,814 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:45,814 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:45,817 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,824 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,832 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:45,927 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:45,927 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:45,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:45,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:12:45,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:45,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:45,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:45,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:45,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:45,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:45,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:45,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:12:45,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:45,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:45,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:45,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:45,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:45,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:45,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:45,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:45,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:46,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:46,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:46,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:46,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:46,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:46,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:46,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:46,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:12:46,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:46,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,045 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:46,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:46,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:46,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:46,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:46,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:46,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:46,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:12:46,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:46,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,094 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:12:46,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:46,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:46,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:46,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:46,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:46,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:46,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:46,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:46,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:46,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:12:46,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:46,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:46,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:46,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:46,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:46,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:46,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:46,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:46,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:46,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,165 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:46,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:46,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:46,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:46,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:46,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:46,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:46,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:12:46,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:46,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,210 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:12:46,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:46,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:46,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:46,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:46,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:46,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:46,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:46,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:46,256 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:12:46,257 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:12:46,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:46,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:46,263 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:46,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:12:46,270 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:46,287 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:46,288 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:46,288 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2023-10-12 17:12:46,294 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 [2023-10-12 17:12:46,296 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:46,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:46,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:46,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:46,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:46,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:46,327 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:46,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 46 transitions. cyclomatic complexity: 34 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:46,359 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 46 transitions. cyclomatic complexity: 34. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 80 transitions. Complement of second has 4 states. [2023-10-12 17:12:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:46,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2023-10-12 17:12:46,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:12:46,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:46,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:12:46,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:46,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:12:46,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:46,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 80 transitions. [2023-10-12 17:12:46,368 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:46,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2023-10-12 17:12:46,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:12:46,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:12:46,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:12:46,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:12:46,369 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:46,369 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:46,369 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:46,370 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:12:46,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:12:46,370 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:46,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:12:46,382 INFO L201 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:46 BoogieIcfgContainer [2023-10-12 17:12:46,382 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:46,383 INFO L158 Benchmark]: Toolchain (without parser) took 2348.14ms. Allocated memory was 192.9MB in the beginning and 290.5MB in the end (delta: 97.5MB). Free memory was 146.8MB in the beginning and 172.6MB in the end (delta: -25.8MB). Peak memory consumption was 71.8MB. Max. memory is 8.0GB. [2023-10-12 17:12:46,384 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 192.9MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:46,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.37ms. Allocated memory is still 192.9MB. Free memory was 146.8MB in the beginning and 145.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:46,385 INFO L158 Benchmark]: Boogie Preprocessor took 21.52ms. Allocated memory is still 192.9MB. Free memory was 145.3MB in the beginning and 144.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:46,387 INFO L158 Benchmark]: RCFGBuilder took 241.58ms. Allocated memory is still 192.9MB. Free memory was 144.1MB in the beginning and 134.4MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:12:46,390 INFO L158 Benchmark]: BuchiAutomizer took 2054.38ms. Allocated memory was 192.9MB in the beginning and 290.5MB in the end (delta: 97.5MB). Free memory was 134.4MB in the beginning and 172.6MB in the end (delta: -38.2MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. [2023-10-12 17:12:46,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26ms. Allocated memory is still 192.9MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.37ms. Allocated memory is still 192.9MB. Free memory was 146.8MB in the beginning and 145.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.52ms. Allocated memory is still 192.9MB. Free memory was 145.3MB in the beginning and 144.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 241.58ms. Allocated memory is still 192.9MB. Free memory was 144.1MB in the beginning and 134.4MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2054.38ms. Allocated memory was 192.9MB in the beginning and 290.5MB in the end (delta: 97.5MB). Free memory was 134.4MB in the beginning and 172.6MB in the end (delta: -38.2MB). Peak memory consumption was 59.3MB. 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 3 locations. One deterministic module has affine ranking function N + -1 * j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital49 mio100 ax100 hnf100 lsp87 ukn44 mio100 lsp64 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 150ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 28 PlacesBefore, 17 PlacesAfterwards, 23 TransitionsBefore, 12 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:12:46,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:46,818 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...