/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/loop-tiling-eq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:49,826 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:49,894 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:12:50,076 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:50,077 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:50,077 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:50,078 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:50,079 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:50,079 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:50,080 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:50,080 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:50,080 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:50,081 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:50,081 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:50,081 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:50,081 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:50,082 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:50,082 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:50,082 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:50,083 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:50,083 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:50,084 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:50,084 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:50,084 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:50,084 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:50,085 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:50,085 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:50,085 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:50,085 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:50,086 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:50,086 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:50,086 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:50,086 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:50,088 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:50,088 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:50,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:50,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:50,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:50,326 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:50,326 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:50,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/loop-tiling-eq.wvr.bpl [2023-10-12 17:12:50,328 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/loop-tiling-eq.wvr.bpl' [2023-10-12 17:12:50,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:50,366 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:50,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:50,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:50,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:50,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,393 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:50,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:50,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:50,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:50,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:50,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:50,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:50,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:50,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:50,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/1) ... [2023-10-12 17:12:50,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:50,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:50,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:50,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:12:50,499 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:12:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:12:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:12:50,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:12:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:12:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:12:50,501 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:50,502 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:12:50,550 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:50,552 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:50,644 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:50,665 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:50,665 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-10-12 17:12:50,666 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:12:50,666 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:12:50,668 INFO L201 PluginConnector]: Adding new model loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:50 BoogieIcfgContainer [2023-10-12 17:12:50,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:50,669 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:50,669 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:50,672 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:50,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:50,672 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:50" (1/2) ... [2023-10-12 17:12:50,674 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f903587 and model type loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:50, skipping insertion in model container [2023-10-12 17:12:50,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:50,674 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:50" (2/2) ... [2023-10-12 17:12:50,675 INFO L332 chiAutomizerObserver]: Analyzing ICFG loop-tiling-eq.wvr.bpl [2023-10-12 17:12:50,723 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:12:50,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 22 places, 20 transitions, 56 flow [2023-10-12 17:12:50,758 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events. [2023-10-12 17:12:50,758 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:50,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 3/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2023-10-12 17:12:50,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 20 transitions, 56 flow [2023-10-12 17:12:50,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 16 transitions, 44 flow [2023-10-12 17:12:50,767 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:50,778 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 16 transitions, 44 flow [2023-10-12 17:12:50,780 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 16 transitions, 44 flow [2023-10-12 17:12:50,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 16 transitions, 44 flow [2023-10-12 17:12:50,786 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events. [2023-10-12 17:12:50,786 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:50,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 3/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2023-10-12 17:12:50,787 INFO L119 LiptonReduction]: Number of co-enabled transitions 46 [2023-10-12 17:12:50,925 INFO L134 LiptonReduction]: Checked pairs total: 30 [2023-10-12 17:12:50,926 INFO L136 LiptonReduction]: Total number of compositions: 3 [2023-10-12 17:12:50,945 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:50,945 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:50,945 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:50,946 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:50,946 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:50,946 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:50,946 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:50,948 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:50,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:50,992 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 11 [2023-10-12 17:12:50,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:50,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:50,996 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:50,996 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:50,996 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:50,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 22 states, but on-demand construction may add more states [2023-10-12 17:12:50,999 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 11 [2023-10-12 17:12:50,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:50,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:50,999 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:50,999 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:51,002 INFO L748 eck$LassoCheckResult]: Stem: 25#[$Ultimate##0]don't care [70] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 28#[L62, $Ultimate##0]don't care [60] $Ultimate##0-->L26: Formula: (= v_x_1 0) InVars {} OutVars{x=v_x_1} AuxVars[] AssignedVars[x] 32#[L62, L26]don't care [2023-10-12 17:12:51,002 INFO L750 eck$LassoCheckResult]: Loop: 32#[L62, L26]don't care [62] L26-->L26: Formula: (and (= (store v_A_9 v_x_14 (select v_F_9 v_x_14)) v_A_8) (< v_x_14 v_L_6) (= v_x_13 (+ v_x_14 1))) InVars {A=v_A_9, x=v_x_14, F=v_F_9, L=v_L_6} OutVars{A=v_A_8, x=v_x_13, F=v_F_9, L=v_L_6} AuxVars[] AssignedVars[A, x] 32#[L62, L26]don't care [2023-10-12 17:12:51,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,006 INFO L85 PathProgramCache]: Analyzing trace with hash 3191, now seen corresponding path program 1 times [2023-10-12 17:12:51,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:51,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964674151] [2023-10-12 17:12:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:51,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:51,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,104 INFO L85 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2023-10-12 17:12:51,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:51,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205618129] [2023-10-12 17:12:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:51,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:51,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash 98983, now seen corresponding path program 1 times [2023-10-12 17:12:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865987280] [2023-10-12 17:12:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:51,209 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:51,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:51,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:51,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:51,210 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:51,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,210 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:51,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:51,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: loop-tiling-eq.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:51,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:51,211 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:51,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:51,251 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:51,314 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:51,317 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:51,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:51,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:51,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:51,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:51,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:51,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:51,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:51,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:51,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:12:51,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:51,370 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 17:12:51,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:51,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:12:51,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:51,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:51,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:51,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:51,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:51,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:51,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:51,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:51,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:51,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:12:51,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:51,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:51,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:51,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:51,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:51,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:51,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:51,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:51,470 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:12:51,471 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:12:51,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,481 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:12:51,530 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:51,565 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:51,565 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:51,566 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, L) = -1*x + 1*L Supporting invariants [] [2023-10-12 17:12:51,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:51,575 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:51,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:51,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:51,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:51,633 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:51,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:51,664 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:51,666 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 22 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:51,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 22 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 54 states and 139 transitions. Complement of second has 5 states. [2023-10-12 17:12:51,717 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 17:12:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:51,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2023-10-12 17:12:51,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:12:51,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:51,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:12:51,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:51,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:12:51,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:51,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 139 transitions. [2023-10-12 17:12:51,732 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2023-10-12 17:12:51,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 31 states and 84 transitions. [2023-10-12 17:12:51,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-10-12 17:12:51,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-10-12 17:12:51,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 84 transitions. [2023-10-12 17:12:51,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:51,738 INFO L219 hiAutomatonCegarLoop]: Abstraction has 31 states and 84 transitions. [2023-10-12 17:12:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 84 transitions. [2023-10-12 17:12:51,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-10-12 17:12:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 2.769230769230769) internal successors, (72), 25 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 72 transitions. [2023-10-12 17:12:51,757 INFO L241 hiAutomatonCegarLoop]: Abstraction has 26 states and 72 transitions. [2023-10-12 17:12:51,757 INFO L430 stractBuchiCegarLoop]: Abstraction has 26 states and 72 transitions. [2023-10-12 17:12:51,758 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:12:51,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 72 transitions. [2023-10-12 17:12:51,759 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2023-10-12 17:12:51,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:51,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:51,759 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:51,759 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:51,760 INFO L748 eck$LassoCheckResult]: Stem: 204#[$Ultimate##0]don't care [70] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 190#[L62, $Ultimate##0]don't care [73] L62-->$Ultimate##0: 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] 192#[$Ultimate##0, L63, $Ultimate##0]don't care [63] $Ultimate##0-->L51: Formula: (= v_i_4 0) InVars {} OutVars{i=v_i_4} AuxVars[] AssignedVars[i] 194#[L63, $Ultimate##0, L51]don't care [2023-10-12 17:12:51,760 INFO L750 eck$LassoCheckResult]: Loop: 194#[L63, $Ultimate##0, L51]don't care [64] L51-->L45: Formula: (and (< v_i_7 v_N_4) (= v_j_7 0)) InVars {i=v_i_7, N=v_N_4} OutVars{i=v_i_7, N=v_N_4, j=v_j_7} AuxVars[] AssignedVars[j] 196#[L63, $Ultimate##0, L45]don't care [67] L45-->L51: Formula: (and (= v_i_15 (+ v_i_16 1)) (<= v_M_9 v_j_15)) InVars {i=v_i_16, M=v_M_9, j=v_j_15} OutVars{i=v_i_15, M=v_M_9, j=v_j_15} AuxVars[] AssignedVars[i] 194#[L63, $Ultimate##0, L51]don't care [2023-10-12 17:12:51,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash 99387, now seen corresponding path program 1 times [2023-10-12 17:12:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:51,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027530755] [2023-10-12 17:12:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:51,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:51,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 3012, now seen corresponding path program 1 times [2023-10-12 17:12:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:51,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408769781] [2023-10-12 17:12:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:51,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash 95512958, now seen corresponding path program 1 times [2023-10-12 17:12:51,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:51,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408009150] [2023-10-12 17:12:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:51,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:51,830 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:51,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:51,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:51,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:51,831 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:12:51,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,831 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:51,831 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:51,831 INFO L133 ssoRankerPreferences]: Filename of dumped script: loop-tiling-eq.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:12:51,831 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:51,831 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:51,832 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:51,835 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:51,865 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:51,908 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:51,909 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:12:51,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:51,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:51,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:12:51,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:51,934 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {j=0} Honda state: {j=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:51,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:51,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:12:51,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:51,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:51,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:51,955 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {M=0} Honda state: {M=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:51,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:51,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:12:51,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:51,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:51,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:51,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:51,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:51,975 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:51,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:12:51,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:51,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:52,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:12:52,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,072 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:52,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:52,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:52,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:52,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:52,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:52,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:52,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: loop-tiling-eq.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:12:52,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:52,073 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:52,074 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,085 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:52,122 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,124 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:52,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:52,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:52,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:12:52,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:52,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:12:52,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,166 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:12:52,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:52,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:52,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:52,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:52,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,186 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:12:52,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:52,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:52,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:52,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:52,201 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:12:52,201 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:12:52,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,203 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 17:12:52,204 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 17:12:52,205 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:52,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:12:52,206 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:52,206 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:12:52,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,210 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:52,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:52,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:52,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:52,249 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:52,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:52,269 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:12:52,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 72 transitions. cyclomatic complexity: 53 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 17:12:52,324 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 72 transitions. cyclomatic complexity: 53. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 58 states and 167 transitions. Complement of second has 6 states. [2023-10-12 17:12:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 17:12:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-10-12 17:12:52,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:12:52,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:52,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:12:52,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:52,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:12:52,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:52,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 167 transitions. [2023-10-12 17:12:52,333 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:52,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 167 transitions. [2023-10-12 17:12:52,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-10-12 17:12:52,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-10-12 17:12:52,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 167 transitions. [2023-10-12 17:12:52,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:52,336 INFO L219 hiAutomatonCegarLoop]: Abstraction has 58 states and 167 transitions. [2023-10-12 17:12:52,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 167 transitions. [2023-10-12 17:12:52,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2023-10-12 17:12:52,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 46 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 137 transitions. [2023-10-12 17:12:52,342 INFO L241 hiAutomatonCegarLoop]: Abstraction has 47 states and 137 transitions. [2023-10-12 17:12:52,342 INFO L430 stractBuchiCegarLoop]: Abstraction has 47 states and 137 transitions. [2023-10-12 17:12:52,342 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:12:52,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 137 transitions. [2023-10-12 17:12:52,343 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:52,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:52,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:52,344 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:12:52,344 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:52,344 INFO L748 eck$LassoCheckResult]: Stem: 373#[$Ultimate##0]don't care [70] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 355#[L62, $Ultimate##0]don't care [73] L62-->$Ultimate##0: 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] 357#[$Ultimate##0, L63, $Ultimate##0]don't care [63] $Ultimate##0-->L51: Formula: (= v_i_4 0) InVars {} OutVars{i=v_i_4} AuxVars[] AssignedVars[i] 359#[L63, $Ultimate##0, L51]don't care [64] L51-->L45: Formula: (and (< v_i_7 v_N_4) (= v_j_7 0)) InVars {i=v_i_7, N=v_N_4} OutVars{i=v_i_7, N=v_N_4, j=v_j_7} AuxVars[] AssignedVars[j] 363#[L63, $Ultimate##0, L45]don't care [2023-10-12 17:12:52,347 INFO L750 eck$LassoCheckResult]: Loop: 363#[L63, $Ultimate##0, L45]don't care [66] L45-->L45: Formula: (and (= (store v_B_9 v_i_13 (store (select v_B_9 v_i_13) v_j_12 (select v_F_7 (+ v_j_12 (* v_i_13 v_M_7))))) v_B_8) (< v_j_12 v_M_7) (= v_j_11 (+ v_j_12 1))) InVars {i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_12, B=v_B_9} OutVars{i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_11, B=v_B_8} AuxVars[] AssignedVars[j, B] 363#[L63, $Ultimate##0, L45]don't care [2023-10-12 17:12:52,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,348 INFO L85 PathProgramCache]: Analyzing trace with hash 3081061, now seen corresponding path program 1 times [2023-10-12 17:12:52,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:52,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425421944] [2023-10-12 17:12:52,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:52,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 1 times [2023-10-12 17:12:52,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:52,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947924344] [2023-10-12 17:12:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:52,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:52,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910371779] [2023-10-12 17:12:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:52,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-10-12 17:12:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:52,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,425 INFO L85 PathProgramCache]: Analyzing trace with hash 95512957, now seen corresponding path program 1 times [2023-10-12 17:12:52,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:52,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116255844] [2023-10-12 17:12:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:52,431 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234630039] [2023-10-12 17:12:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:52,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,434 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-10-12 17:12:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:52,540 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:52,540 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:52,541 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:52,541 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:52,541 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:52,541 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,541 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:52,541 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:52,541 INFO L133 ssoRankerPreferences]: Filename of dumped script: loop-tiling-eq.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:12:52,541 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:52,541 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:52,543 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 17:12:52,545 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,548 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,563 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,566 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:52,632 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:52,632 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:52,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,635 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 17:12:52,636 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 17:12:52,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:52,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:52,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:52,664 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 17:12:52,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,666 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:12:52,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:52,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:52,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:52,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,698 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:52,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:52,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:52,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:12:52,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:52,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,739 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:12:52,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:52,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:52,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:52,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:52,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:52,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:52,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:52,800 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:52,804 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:12:52,804 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:12:52,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:52,810 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:52,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:12:52,813 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:52,826 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:52,826 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:52,826 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:12:52,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,832 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:52,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:52,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:52,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:52,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:52,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:52,864 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:52,864 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 137 transitions. cyclomatic complexity: 104 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 17:12:52,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 137 transitions. cyclomatic complexity: 104. 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 144 states and 386 transitions. Complement of second has 5 states. [2023-10-12 17:12:52,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:52,891 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 17:12:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2023-10-12 17:12:52,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:12:52,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:52,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:12:52,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:52,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:12:52,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:52,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 386 transitions. [2023-10-12 17:12:52,896 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:52,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 96 states and 273 transitions. [2023-10-12 17:12:52,898 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2023-10-12 17:12:52,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2023-10-12 17:12:52,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 273 transitions. [2023-10-12 17:12:52,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:52,899 INFO L219 hiAutomatonCegarLoop]: Abstraction has 96 states and 273 transitions. [2023-10-12 17:12:52,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 273 transitions. [2023-10-12 17:12:52,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 68. [2023-10-12 17:12:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 2.8823529411764706) internal successors, (196), 67 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 196 transitions. [2023-10-12 17:12:52,907 INFO L241 hiAutomatonCegarLoop]: Abstraction has 68 states and 196 transitions. [2023-10-12 17:12:52,907 INFO L430 stractBuchiCegarLoop]: Abstraction has 68 states and 196 transitions. [2023-10-12 17:12:52,908 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:12:52,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 196 transitions. [2023-10-12 17:12:52,909 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:52,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:52,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:52,909 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-10-12 17:12:52,909 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:52,910 INFO L748 eck$LassoCheckResult]: Stem: 653#[$Ultimate##0]don't care [70] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 629#[L62, $Ultimate##0]don't care [73] L62-->$Ultimate##0: 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] 631#[$Ultimate##0, L63, $Ultimate##0]don't care [63] $Ultimate##0-->L51: Formula: (= v_i_4 0) InVars {} OutVars{i=v_i_4} AuxVars[] AssignedVars[i] 633#[L63, $Ultimate##0, L51]don't care [64] L51-->L45: Formula: (and (< v_i_7 v_N_4) (= v_j_7 0)) InVars {i=v_i_7, N=v_N_4} OutVars{i=v_i_7, N=v_N_4, j=v_j_7} AuxVars[] AssignedVars[j] 635#[L63, $Ultimate##0, L45]don't care [67] L45-->L51: Formula: (and (= v_i_15 (+ v_i_16 1)) (<= v_M_9 v_j_15)) InVars {i=v_i_16, M=v_M_9, j=v_j_15} OutVars{i=v_i_15, M=v_M_9, j=v_j_15} AuxVars[] AssignedVars[i] 639#[L63, $Ultimate##0, L51]don't care [64] L51-->L45: Formula: (and (< v_i_7 v_N_4) (= v_j_7 0)) InVars {i=v_i_7, N=v_N_4} OutVars{i=v_i_7, N=v_N_4, j=v_j_7} AuxVars[] AssignedVars[j] 641#[L63, $Ultimate##0, L45]don't care [2023-10-12 17:12:52,910 INFO L750 eck$LassoCheckResult]: Loop: 641#[L63, $Ultimate##0, L45]don't care [66] L45-->L45: Formula: (and (= (store v_B_9 v_i_13 (store (select v_B_9 v_i_13) v_j_12 (select v_F_7 (+ v_j_12 (* v_i_13 v_M_7))))) v_B_8) (< v_j_12 v_M_7) (= v_j_11 (+ v_j_12 1))) InVars {i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_12, B=v_B_9} OutVars{i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_11, B=v_B_8} AuxVars[] AssignedVars[j, B] 641#[L63, $Ultimate##0, L45]don't care [2023-10-12 17:12:52,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1334065534, now seen corresponding path program 2 times [2023-10-12 17:12:52,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:52,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117140000] [2023-10-12 17:12:52,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:52,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:52,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:52,933 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 2 times [2023-10-12 17:12:52,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:52,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487443214] [2023-10-12 17:12:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:52,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:52,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:52,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558925761] [2023-10-12 17:12:52,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-10-12 17:12:52,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:52,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,040 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-10-12 17:12:53,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-10-12 17:12:53,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-10-12 17:12:53,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-10-12 17:12:53,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:53,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:53,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:53,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1593641472, now seen corresponding path program 1 times [2023-10-12 17:12:53,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:53,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998160846] [2023-10-12 17:12:53,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:53,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:53,125 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115679229] [2023-10-12 17:12:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:53,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:53,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,137 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-10-12 17:12:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:53,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:53,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:53,216 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-10-12 17:12:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:53,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:12:53,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998160846] [2023-10-12 17:12:53,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-10-12 17:12:53,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115679229] [2023-10-12 17:12:53,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115679229] provided 0 perfect and 2 imperfect interpolant sequences [2023-10-12 17:12:53,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-10-12 17:12:53,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-10-12 17:12:53,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005168337] [2023-10-12 17:12:53,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-10-12 17:12:53,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:12:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-10-12 17:12:53,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-10-12 17:12:53,268 INFO L87 Difference]: Start difference. First operand 68 states and 196 transitions. cyclomatic complexity: 151 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:53,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-10-12 17:12:53,350 INFO L93 Difference]: Finished difference Result 149 states and 422 transitions. [2023-10-12 17:12:53,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 422 transitions. [2023-10-12 17:12:53,353 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:53,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 97 states and 262 transitions. [2023-10-12 17:12:53,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2023-10-12 17:12:53,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2023-10-12 17:12:53,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 262 transitions. [2023-10-12 17:12:53,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:53,355 INFO L219 hiAutomatonCegarLoop]: Abstraction has 97 states and 262 transitions. [2023-10-12 17:12:53,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 262 transitions. [2023-10-12 17:12:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 82. [2023-10-12 17:12:53,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 2.7804878048780486) internal successors, (228), 81 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 228 transitions. [2023-10-12 17:12:53,362 INFO L241 hiAutomatonCegarLoop]: Abstraction has 82 states and 228 transitions. [2023-10-12 17:12:53,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-10-12 17:12:53,364 INFO L430 stractBuchiCegarLoop]: Abstraction has 82 states and 228 transitions. [2023-10-12 17:12:53,364 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:12:53,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 228 transitions. [2023-10-12 17:12:53,365 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-10-12 17:12:53,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:53,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:53,365 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-10-12 17:12:53,365 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:53,366 INFO L748 eck$LassoCheckResult]: Stem: 987#[$Ultimate##0]don't care [70] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 961#[L62, $Ultimate##0]don't care [73] L62-->$Ultimate##0: 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] 963#[$Ultimate##0, L63, $Ultimate##0]don't care [63] $Ultimate##0-->L51: Formula: (= v_i_4 0) InVars {} OutVars{i=v_i_4} AuxVars[] AssignedVars[i] 965#[L63, $Ultimate##0, L51]don't care [64] L51-->L45: Formula: (and (< v_i_7 v_N_4) (= v_j_7 0)) InVars {i=v_i_7, N=v_N_4} OutVars{i=v_i_7, N=v_N_4, j=v_j_7} AuxVars[] AssignedVars[j] 967#[L63, $Ultimate##0, L45]don't care [66] L45-->L45: Formula: (and (= (store v_B_9 v_i_13 (store (select v_B_9 v_i_13) v_j_12 (select v_F_7 (+ v_j_12 (* v_i_13 v_M_7))))) v_B_8) (< v_j_12 v_M_7) (= v_j_11 (+ v_j_12 1))) InVars {i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_12, B=v_B_9} OutVars{i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_11, B=v_B_8} AuxVars[] AssignedVars[j, B] 981#[L63, $Ultimate##0, L45]don't care [67] L45-->L51: Formula: (and (= v_i_15 (+ v_i_16 1)) (<= v_M_9 v_j_15)) InVars {i=v_i_16, M=v_M_9, j=v_j_15} OutVars{i=v_i_15, M=v_M_9, j=v_j_15} AuxVars[] AssignedVars[i] 971#[L63, $Ultimate##0, L51]don't care [64] L51-->L45: Formula: (and (< v_i_7 v_N_4) (= v_j_7 0)) InVars {i=v_i_7, N=v_N_4} OutVars{i=v_i_7, N=v_N_4, j=v_j_7} AuxVars[] AssignedVars[j] 975#[L63, $Ultimate##0, L45]don't care [2023-10-12 17:12:53,366 INFO L750 eck$LassoCheckResult]: Loop: 975#[L63, $Ultimate##0, L45]don't care [66] L45-->L45: Formula: (and (= (store v_B_9 v_i_13 (store (select v_B_9 v_i_13) v_j_12 (select v_F_7 (+ v_j_12 (* v_i_13 v_M_7))))) v_B_8) (< v_j_12 v_M_7) (= v_j_11 (+ v_j_12 1))) InVars {i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_12, B=v_B_9} OutVars{i=v_i_13, F=v_F_7, M=v_M_7, j=v_j_11, B=v_B_8} AuxVars[] AssignedVars[j, B] 975#[L63, $Ultimate##0, L45]don't care [2023-10-12 17:12:53,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:53,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1593640602, now seen corresponding path program 2 times [2023-10-12 17:12:53,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:53,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099488261] [2023-10-12 17:12:53,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:53,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:53,371 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:53,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976843872] [2023-10-12 17:12:53,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-10-12 17:12:53,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:53,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,373 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-10-12 17:12:53,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-10-12 17:12:53,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-10-12 17:12:53,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:53,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:53,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 3 times [2023-10-12 17:12:53,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:53,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276551509] [2023-10-12 17:12:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:53,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:53,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:53,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634441803] [2023-10-12 17:12:53,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-10-12 17:12:53,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:53,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,421 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-10-12 17:12:53,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-10-12 17:12:53,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-10-12 17:12:53,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:53,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:53,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:53,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2136748824, now seen corresponding path program 3 times [2023-10-12 17:12:53,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:53,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455720031] [2023-10-12 17:12:53,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:53,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:53,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-10-12 17:12:53,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765115495] [2023-10-12 17:12:53,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-10-12 17:12:53,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:12:53,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,484 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-10-12 17:12:53,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-10-12 17:12:53,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-10-12 17:12:53,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:53,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:53,652 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:53,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:53,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:53,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:53,653 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:53,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:53,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:53,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:53,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: loop-tiling-eq.wvr.bpl_BEv2_Iteration5_Lasso [2023-10-12 17:12:53,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:53,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:53,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:53,692 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:53,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:53,696 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:53,699 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:53,774 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:53,774 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:53,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:53,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,776 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-10-12 17:12:53,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:53,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:53,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:53,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:53,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:53,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:53,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:53,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:53,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:53,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:53,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:53,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,794 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-10-12 17:12:53,797 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 17:12:53,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:53,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:53,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:53,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:53,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:53,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:53,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:53,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:53,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:53,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,817 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-10-12 17:12:53,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:53,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:53,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:53,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:53,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:53,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:53,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:53,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:53,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:53,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:53,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,836 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-10-12 17:12:53,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:12:53,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:53,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:53,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:53,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:53,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:53,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:53,899 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:53,912 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:12:53,912 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:12:53,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:53,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:53,919 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:53,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-10-12 17:12:53,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:53,931 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:53,931 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:53,931 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:12:53,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:53,939 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:12:53,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:53,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:53,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:53,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:53,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:53,974 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:53,974 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 228 transitions. cyclomatic complexity: 169 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:54,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 228 transitions. cyclomatic complexity: 169. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 389 transitions. Complement of second has 5 states. [2023-10-12 17:12:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2023-10-12 17:12:54,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 7 letters. Loop has 1 letters. [2023-10-12 17:12:54,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:54,004 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-10-12 17:12:54,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:54,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:54,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:54,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:54,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:54,046 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:54,048 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 228 transitions. cyclomatic complexity: 169 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:54,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 228 transitions. cyclomatic complexity: 169. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 389 transitions. Complement of second has 5 states. [2023-10-12 17:12:54,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:54,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:54,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2023-10-12 17:12:54,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 7 letters. Loop has 1 letters. [2023-10-12 17:12:54,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:54,069 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-10-12 17:12:54,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:54,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:54,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:54,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:54,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:12:54,106 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:54,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 228 transitions. cyclomatic complexity: 169 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:54,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 228 transitions. cyclomatic complexity: 169. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 167 states and 439 transitions. Complement of second has 4 states. [2023-10-12 17:12:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:54,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:12:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2023-10-12 17:12:54,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 1 letters. [2023-10-12 17:12:54,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:54,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 8 letters. Loop has 1 letters. [2023-10-12 17:12:54,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:54,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:12:54,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:54,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 439 transitions. [2023-10-12 17:12:54,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:54,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 0 states and 0 transitions. [2023-10-12 17:12:54,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:12:54,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:12:54,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:12:54,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:12:54,130 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:54,130 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:54,130 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:54,130 INFO L337 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-10-12 17:12:54,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:12:54,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:54,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:12:54,136 INFO L201 PluginConnector]: Adding new model loop-tiling-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:54 BoogieIcfgContainer [2023-10-12 17:12:54,136 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:54,136 INFO L158 Benchmark]: Toolchain (without parser) took 3770.68ms. Allocated memory was 175.1MB in the beginning and 264.2MB in the end (delta: 89.1MB). Free memory was 122.2MB in the beginning and 159.2MB in the end (delta: -37.0MB). Peak memory consumption was 50.7MB. Max. memory is 8.0GB. [2023-10-12 17:12:54,137 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.27ms. Allocated memory is still 175.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:54,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.64ms. Allocated memory is still 175.1MB. Free memory was 122.2MB in the beginning and 120.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:54,137 INFO L158 Benchmark]: Boogie Preprocessor took 23.91ms. Allocated memory is still 175.1MB. Free memory was 120.6MB in the beginning and 119.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:54,137 INFO L158 Benchmark]: RCFGBuilder took 247.78ms. Allocated memory is still 175.1MB. Free memory was 119.6MB in the beginning and 108.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:12:54,138 INFO L158 Benchmark]: BuchiAutomizer took 3467.19ms. Allocated memory was 175.1MB in the beginning and 264.2MB in the end (delta: 89.1MB). Free memory was 108.7MB in the beginning and 159.2MB in the end (delta: -50.4MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. [2023-10-12 17:12:54,139 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 0.27ms. Allocated memory is still 175.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.64ms. Allocated memory is still 175.1MB. Free memory was 122.2MB in the beginning and 120.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.91ms. Allocated memory is still 175.1MB. Free memory was 120.6MB in the beginning and 119.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 247.78ms. Allocated memory is still 175.1MB. Free memory was 119.6MB in the beginning and 108.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 3467.19ms. Allocated memory was 175.1MB in the beginning and 264.2MB in the end (delta: 89.1MB). Free memory was 108.7MB in the beginning and 159.2MB in the end (delta: -50.4MB). Peak memory consumption was 38.2MB. 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x + L and consists of 4 locations. One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function M + -1 * j and consists of 3 locations. One nondeterministic module has affine ranking function M + -1 * j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 59 StatesRemovedByMinimization, 4 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 24 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf100 lsp72 ukn72 mio100 lsp88 div100 bol100 ite100 ukn100 eq167 hnf94 smp100 dnf100 smp100 tf105 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 152ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.1s - 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: 0.1s, 20 PlacesBefore, 18 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 30 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 0, independent unconditional: 30, 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: 10, independent: 10, independent conditional: 0, independent unconditional: 10, 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: 10, independent: 10, independent conditional: 0, independent unconditional: 10, 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: 30, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:12:54,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:54,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-10-12 17:12:54,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:54,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-10-12 17:12:54,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-10-12 17:12:55,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:55,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:55,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:55,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...