/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/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:13:46,244 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:46,310 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 17:13:46,339 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:46,339 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:46,340 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:46,343 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:46,344 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:46,344 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:46,348 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:46,348 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:46,348 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:46,348 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:46,349 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:46,350 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:46,350 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:46,350 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:46,350 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:46,350 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:46,351 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:46,351 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:46,351 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:46,351 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:46,351 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:46,352 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:46,352 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:46,352 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:46,352 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:46,352 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:46,353 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:46,354 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:46,354 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:46,354 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:46,355 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:46,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:46,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:46,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:46,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:46,585 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:46,585 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:46,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl [2023-10-12 17:13:46,587 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl' [2023-10-12 17:13:46,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:46,616 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:46,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:46,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:46,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:46,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,639 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:46,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:46,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:46,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:46,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:46,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:46,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:46,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:46,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:46,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/1) ... [2023-10-12 17:13:46,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:46,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:46,703 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 17:13:46,709 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 17:13:46,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:46,752 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:46,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:46,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:46,755 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 17:13:46,797 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:46,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:46,889 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:46,907 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:46,907 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:13:46,909 INFO L201 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:46 BoogieIcfgContainer [2023-10-12 17:13:46,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:46,910 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:46,910 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:46,917 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:46,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:46,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:46" (1/2) ... [2023-10-12 17:13:46,919 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bb4673a and model type three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:46, skipping insertion in model container [2023-10-12 17:13:46,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:46,919 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:46" (2/2) ... [2023-10-12 17:13:46,920 INFO L332 chiAutomizerObserver]: Analyzing ICFG three-array-sum-alt.wvr.bpl [2023-10-12 17:13:46,980 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:13:47,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 30 transitions, 84 flow [2023-10-12 17:13:47,026 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2023-10-12 17:13:47,026 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:47,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:13:47,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 30 transitions, 84 flow [2023-10-12 17:13:47,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 24 transitions, 66 flow [2023-10-12 17:13:47,039 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:47,064 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 24 transitions, 66 flow [2023-10-12 17:13:47,066 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 24 transitions, 66 flow [2023-10-12 17:13:47,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 24 transitions, 66 flow [2023-10-12 17:13:47,074 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2023-10-12 17:13:47,074 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:47,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:13:47,075 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:13:47,263 INFO L134 LiptonReduction]: Checked pairs total: 96 [2023-10-12 17:13:47,263 INFO L136 LiptonReduction]: Total number of compositions: 10 [2023-10-12 17:13:47,279 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:47,279 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:47,280 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:47,280 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:47,280 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:47,280 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:47,280 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:47,280 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:47,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:47,310 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 15 [2023-10-12 17:13:47,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:47,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:47,314 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:47,314 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:47,314 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:47,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 24 states, but on-demand construction may add more states [2023-10-12 17:13:47,318 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 15 [2023-10-12 17:13:47,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:47,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:47,318 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:47,319 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:47,322 INFO L748 eck$LassoCheckResult]: Stem: 37#[$Ultimate##0]don't care [97] $Ultimate##0-->L59: Formula: (and (= v_asum_15 v_i_17) (= v_i_17 v_bsum_15) (<= 0 v_N_20) (= v_i_17 v_k_22) (= v_i_17 v_csum_19) (= v_i_17 0) (= v_i_17 v_j_17)) InVars {csum=v_csum_19, N=v_N_20, bsum=v_bsum_15, k=v_k_22, j=v_j_17, i=v_i_17, asum=v_asum_15} OutVars{csum=v_csum_19, N=v_N_20, bsum=v_bsum_15, k=v_k_22, j=v_j_17, i=v_i_17, asum=v_asum_15} AuxVars[] AssignedVars[] 40#[L59]don't care [79] L59-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 42#[L24-1, L59-1]don't care [2023-10-12 17:13:47,323 INFO L750 eck$LassoCheckResult]: Loop: 42#[L24-1, L59-1]don't care [95] L24-1-->L24-1: Formula: (and (< v_i_14 v_N_18) (= v_i_13 (+ v_i_14 1)) (= v_asum_9 (+ v_asum_10 (select v_A_9 v_i_14)))) InVars {A=v_A_9, N=v_N_18, i=v_i_14, asum=v_asum_10} OutVars{A=v_A_9, N=v_N_18, i=v_i_13, asum=v_asum_9} AuxVars[] AssignedVars[i, asum] 42#[L24-1, L59-1]don't care [2023-10-12 17:13:47,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:47,327 INFO L85 PathProgramCache]: Analyzing trace with hash 4047, now seen corresponding path program 1 times [2023-10-12 17:13:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307154313] [2023-10-12 17:13:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:47,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:47,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:47,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:47,449 INFO L85 PathProgramCache]: Analyzing trace with hash 126, now seen corresponding path program 1 times [2023-10-12 17:13:47,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:47,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550857013] [2023-10-12 17:13:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:47,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:47,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:47,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:47,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:47,466 INFO L85 PathProgramCache]: Analyzing trace with hash 125552, now seen corresponding path program 1 times [2023-10-12 17:13:47,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:47,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057465086] [2023-10-12 17:13:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:47,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:47,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:47,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:47,594 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:47,595 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:47,595 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:47,595 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:47,595 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:47,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:47,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:47,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:47,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: three-array-sum-alt.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:13:47,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:47,596 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:47,611 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 17:13:47,624 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 17:13:47,628 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 17:13:47,630 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 17:13:47,634 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 17:13:47,639 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 17:13:47,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:47,757 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:47,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:47,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:47,765 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 17:13:47,773 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 17:13:47,781 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 17:13:47,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:47,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:47,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:47,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:47,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:47,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:47,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:47,821 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 [2023-10-12 17:13:47,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:47,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:47,822 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 17:13:47,824 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 17:13:47,826 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 17:13:47,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:47,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:47,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:47,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:47,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:47,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:47,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:47,862 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 17:13:47,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:47,864 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 17:13:47,873 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 17:13:47,881 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 17:13:47,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:47,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:47,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:47,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:47,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:47,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:47,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:47,911 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 17:13:47,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:47,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:47,913 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 17:13:47,921 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 17:13:47,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:47,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:47,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:47,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:47,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:47,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:47,943 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 17:13:47,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:47,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:13:47,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:47,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:47,970 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 17:13:47,973 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 17:13:47,974 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 17:13:47,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:47,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:47,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:47,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:47,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:47,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:48,016 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 17:13:48,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,018 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 17:13:48,028 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 17:13:48,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:48,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:48,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:48,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:48,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:48,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,049 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 17:13:48,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:48,071 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 17:13:48,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,072 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 17:13:48,079 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 17:13:48,080 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 17:13:48,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:48,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:48,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:48,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:48,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:48,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,105 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:48,116 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:13:48,116 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:13:48,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,123 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 17:13:48,124 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 17:13:48,127 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:48,137 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:48,138 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:48,138 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:13:48,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-10-12 17:13:48,152 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:48,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:48,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:48,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:48,218 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:48,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:48,219 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 17:13:48,246 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 17:13:48,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 24 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 17:13:48,311 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 24 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 65 states and 193 transitions. Complement of second has 5 states. [2023-10-12 17:13:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:48,317 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 17:13:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-10-12 17:13:48,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:13:48,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:48,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:48,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:48,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:13:48,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:48,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 193 transitions. [2023-10-12 17:13:48,333 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 12 [2023-10-12 17:13:48,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 39 states and 120 transitions. [2023-10-12 17:13:48,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-10-12 17:13:48,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-10-12 17:13:48,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 120 transitions. [2023-10-12 17:13:48,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:48,341 INFO L219 hiAutomatonCegarLoop]: Abstraction has 39 states and 120 transitions. [2023-10-12 17:13:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 120 transitions. [2023-10-12 17:13:48,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2023-10-12 17:13:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 3.1724137931034484) internal successors, (92), 28 states have internal predecessors, (92), 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 17:13:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 92 transitions. [2023-10-12 17:13:48,368 INFO L241 hiAutomatonCegarLoop]: Abstraction has 29 states and 92 transitions. [2023-10-12 17:13:48,368 INFO L430 stractBuchiCegarLoop]: Abstraction has 29 states and 92 transitions. [2023-10-12 17:13:48,368 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:48,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 92 transitions. [2023-10-12 17:13:48,370 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 12 [2023-10-12 17:13:48,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:48,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:48,371 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:48,371 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:48,371 INFO L748 eck$LassoCheckResult]: Stem: 237#[$Ultimate##0]don't care [97] $Ultimate##0-->L59: Formula: (and (= v_asum_15 v_i_17) (= v_i_17 v_bsum_15) (<= 0 v_N_20) (= v_i_17 v_k_22) (= v_i_17 v_csum_19) (= v_i_17 0) (= v_i_17 v_j_17)) InVars {csum=v_csum_19, N=v_N_20, bsum=v_bsum_15, k=v_k_22, j=v_j_17, i=v_i_17, asum=v_asum_15} OutVars{csum=v_csum_19, N=v_N_20, bsum=v_bsum_15, k=v_k_22, j=v_j_17, i=v_i_17, asum=v_asum_15} AuxVars[] AssignedVars[] 217#[L59]don't care [79] L59-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 207#[L24-1, L59-1]don't care [82] L59-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 189#[L60, L35-1, L24-1]don't care [2023-10-12 17:13:48,371 INFO L750 eck$LassoCheckResult]: Loop: 189#[L60, L35-1, L24-1]don't care [93] L35-1-->L35-1: Formula: (and (< v_j_14 v_N_14) (= (+ v_bsum_10 (select v_B_9 v_j_14)) v_bsum_9) (= (+ v_j_14 1) v_j_13)) InVars {bsum=v_bsum_10, N=v_N_14, j=v_j_14, B=v_B_9} OutVars{bsum=v_bsum_9, N=v_N_14, j=v_j_13, B=v_B_9} AuxVars[] AssignedVars[bsum, j] 189#[L60, L35-1, L24-1]don't care [2023-10-12 17:13:48,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,372 INFO L85 PathProgramCache]: Analyzing trace with hash 125539, now seen corresponding path program 1 times [2023-10-12 17:13:48,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:48,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725379727] [2023-10-12 17:13:48,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:48,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:48,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,383 INFO L85 PathProgramCache]: Analyzing trace with hash 124, now seen corresponding path program 1 times [2023-10-12 17:13:48,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:48,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302134463] [2023-10-12 17:13:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:48,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:48,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash 3891802, now seen corresponding path program 1 times [2023-10-12 17:13:48,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:48,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067399925] [2023-10-12 17:13:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:48,513 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:48,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:48,514 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:48,514 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:48,514 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:48,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:48,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:48,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: three-array-sum-alt.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:13:48,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:48,515 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:48,517 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 17:13:48,520 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 17:13:48,523 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 17:13:48,525 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 17:13:48,539 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 17:13:48,543 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 17:13:48,546 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 17:13:48,549 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 17:13:48,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:48,646 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:48,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,653 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 17:13:48,657 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 17:13:48,658 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 17:13:48,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:48,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:48,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:48,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:48,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:48,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:48,686 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 17:13:48,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,717 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 17:13:48,719 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 17:13:48,719 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 17:13:48,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:48,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:48,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:48,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:48,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:48,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:48,750 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 17:13:48,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,752 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 17:13:48,754 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 17:13:48,756 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 17:13:48,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:48,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:48,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:48,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:48,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:48,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:48,791 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 17:13:48,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:13:48,797 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 17:13:48,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:48,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:48,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:48,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:48,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:13:48,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:48,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:48,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:48,833 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:13:48,834 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:13:48,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:48,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:48,837 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:13:48,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:13:48,840 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:48,858 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:48,858 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:48,858 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, j) = 1*N - 1*j Supporting invariants [] [2023-10-12 17:13:48,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:48,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:48,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:48,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:48,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:48,903 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:48,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:48,903 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 17:13:48,905 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 17:13:48,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 92 transitions. cyclomatic complexity: 81 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 17:13:48,950 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 92 transitions. cyclomatic complexity: 81. 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 85 states and 277 transitions. Complement of second has 4 states. [2023-10-12 17:13:48,951 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 17:13:48,955 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 17:13:48,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-10-12 17:13:48,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:48,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:48,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:48,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:48,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:48,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:48,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 277 transitions. [2023-10-12 17:13:48,958 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:13:48,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 51 states and 164 transitions. [2023-10-12 17:13:48,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-10-12 17:13:48,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-10-12 17:13:48,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 164 transitions. [2023-10-12 17:13:48,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:48,960 INFO L219 hiAutomatonCegarLoop]: Abstraction has 51 states and 164 transitions. [2023-10-12 17:13:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 164 transitions. [2023-10-12 17:13:48,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 42. [2023-10-12 17:13:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 3.4523809523809526) internal successors, (145), 41 states have internal predecessors, (145), 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 17:13:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 145 transitions. [2023-10-12 17:13:48,964 INFO L241 hiAutomatonCegarLoop]: Abstraction has 42 states and 145 transitions. [2023-10-12 17:13:48,964 INFO L430 stractBuchiCegarLoop]: Abstraction has 42 states and 145 transitions. [2023-10-12 17:13:48,967 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:48,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 145 transitions. [2023-10-12 17:13:48,971 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:13:48,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:48,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:48,972 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:48,972 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:48,973 INFO L748 eck$LassoCheckResult]: Stem: 420#[$Ultimate##0]don't care [97] $Ultimate##0-->L59: Formula: (and (= v_asum_15 v_i_17) (= v_i_17 v_bsum_15) (<= 0 v_N_20) (= v_i_17 v_k_22) (= v_i_17 v_csum_19) (= v_i_17 0) (= v_i_17 v_j_17)) InVars {csum=v_csum_19, N=v_N_20, bsum=v_bsum_15, k=v_k_22, j=v_j_17, i=v_i_17, asum=v_asum_15} OutVars{csum=v_csum_19, N=v_N_20, bsum=v_bsum_15, k=v_k_22, j=v_j_17, i=v_i_17, asum=v_asum_15} AuxVars[] AssignedVars[] 398#[L59]don't care [79] L59-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 390#[L24-1, L59-1]don't care [82] L59-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 362#[L60, L35-1, L24-1]don't care [85] L60-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 364#[L35-1, L46-1, L61, L24-1]don't care [2023-10-12 17:13:48,973 INFO L750 eck$LassoCheckResult]: Loop: 364#[L35-1, L46-1, L61, L24-1]don't care [90] L46-1-->L46-1: Formula: (and (= (store v_C_11 v_k_19 (+ (select v_B_7 v_k_19) (select v_A_7 v_k_19))) v_C_10) (< v_k_19 v_N_10) (= (+ (select v_C_10 v_k_19) v_csum_14) v_csum_13) (= v_k_18 (+ v_k_19 1))) InVars {csum=v_csum_14, A=v_A_7, N=v_N_10, k=v_k_19, C=v_C_11, B=v_B_7} OutVars{csum=v_csum_13, A=v_A_7, N=v_N_10, k=v_k_18, C=v_C_10, B=v_B_7} AuxVars[] AssignedVars[csum, k, C] 364#[L35-1, L46-1, L61, L24-1]don't care [2023-10-12 17:13:48,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash 3891794, now seen corresponding path program 1 times [2023-10-12 17:13:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:48,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684713684] [2023-10-12 17:13:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:48,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:48,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:48,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2023-10-12 17:13:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:48,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096360041] [2023-10-12 17:13:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:48,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:49,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:49,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:49,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:49,007 INFO L85 PathProgramCache]: Analyzing trace with hash 120645704, now seen corresponding path program 1 times [2023-10-12 17:13:49,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:49,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812325362] [2023-10-12 17:13:49,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:49,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:49,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:49,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:49,150 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:49,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:49,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:49,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:49,150 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:49,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:49,150 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:49,150 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:49,150 INFO L133 ssoRankerPreferences]: Filename of dumped script: three-array-sum-alt.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:13:49,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:49,150 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:49,152 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 17:13:49,187 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 17:13:49,190 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 17:13:49,193 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 17:13:49,195 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 17:13:49,197 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 17:13:49,204 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 17:13:49,206 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 17:13:49,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:13:49,211 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 17:13:49,214 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 17:13:49,312 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:49,312 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:49,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:49,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:49,314 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:13:49,325 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 17:13:49,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:49,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:49,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:49,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:49,335 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:49,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:49,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:13:49,347 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:49,355 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-10-12 17:13:49,356 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:13:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:49,365 INFO L229 MonitoredProcess]: Starting monitored process 16 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 17:13:49,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:49,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:13:49,380 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:49,380 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:49,380 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:13:49,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-10-12 17:13:49,386 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:49,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:49,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:49,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:49,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:49,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:49,419 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 17:13:49,419 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 17:13:49,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 145 transitions. cyclomatic complexity: 122 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:49,443 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 145 transitions. cyclomatic complexity: 122. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 307 transitions. Complement of second has 4 states. [2023-10-12 17:13:49,443 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 17:13:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:49,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-10-12 17:13:49,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:49,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:49,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:49,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:49,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:13:49,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:49,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 307 transitions. [2023-10-12 17:13:49,447 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:49,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 0 states and 0 transitions. [2023-10-12 17:13:49,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:49,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:49,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:49,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:49,448 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:49,448 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:49,448 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:49,448 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:13:49,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:49,448 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:49,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:49,454 INFO L201 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:49 BoogieIcfgContainer [2023-10-12 17:13:49,454 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:49,455 INFO L158 Benchmark]: Toolchain (without parser) took 2838.70ms. Allocated memory was 196.1MB in the beginning and 255.9MB in the end (delta: 59.8MB). Free memory was 147.8MB in the beginning and 101.5MB in the end (delta: 46.3MB). Peak memory consumption was 106.6MB. Max. memory is 8.0GB. [2023-10-12 17:13:49,455 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 196.1MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:49,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.79ms. Allocated memory is still 196.1MB. Free memory was 147.8MB in the beginning and 146.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:13:49,456 INFO L158 Benchmark]: Boogie Preprocessor took 24.43ms. Allocated memory is still 196.1MB. Free memory was 146.3MB in the beginning and 145.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:49,456 INFO L158 Benchmark]: RCFGBuilder took 240.90ms. Allocated memory is still 196.1MB. Free memory was 145.1MB in the beginning and 135.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:13:49,457 INFO L158 Benchmark]: BuchiAutomizer took 2544.05ms. Allocated memory was 196.1MB in the beginning and 255.9MB in the end (delta: 59.8MB). Free memory was 135.1MB in the beginning and 101.5MB in the end (delta: 33.6MB). Peak memory consumption was 93.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:49,458 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 0.24ms. Allocated memory is still 196.1MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.79ms. Allocated memory is still 196.1MB. Free memory was 147.8MB in the beginning and 146.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.43ms. Allocated memory is still 196.1MB. Free memory was 146.3MB in the beginning and 145.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 240.90ms. Allocated memory is still 196.1MB. Free memory was 145.1MB in the beginning and 135.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2544.05ms. Allocated memory was 196.1MB in the beginning and 255.9MB in the end (delta: 59.8MB). Free memory was 135.1MB in the beginning and 101.5MB in the end (delta: 33.6MB). Peak memory consumption was 93.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function N + -1 * j and consists of 3 locations. One deterministic module has affine ranking function -1 * k + N and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital52 mio100 ax100 hnf100 lsp58 ukn78 mio100 lsp72 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms 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: 0.2s - 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: 0.2s, 31 PlacesBefore, 22 PlacesAfterwards, 24 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 4 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 96 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 96, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, 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 17:13:49,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:49,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:49,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:13:50,073 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...