/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_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:31,994 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:32,071 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 17:22:32,101 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:32,102 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:32,102 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:32,104 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:32,104 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:32,104 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:32,108 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:32,109 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:32,109 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:32,109 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:32,110 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:32,111 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:32,111 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:32,111 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:32,111 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:32,112 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:32,112 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:32,112 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:32,112 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:32,113 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:32,113 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:32,113 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:32,113 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:32,113 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:32,114 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:32,114 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:32,114 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:32,115 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:32,115 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:32,116 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:32,117 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:32,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:32,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:32,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:32,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:32,349 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:32,350 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:32,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl [2023-10-12 17:22:32,351 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl' [2023-10-12 17:22:32,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:32,380 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:32,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:32,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:32,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:32,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,404 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:32,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:32,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:32,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:32,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:32,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:32,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:32,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:32,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:32,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/1) ... [2023-10-12 17:22:32,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:32,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:32,464 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 17:22:32,487 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 17:22:32,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:32,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:32,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:32,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:32,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:32,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:32,513 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 17:22:32,556 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:32,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:32,656 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:32,701 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:32,701 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-10-12 17:22:32,702 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:22:32,704 INFO L201 PluginConnector]: Adding new model unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:32 BoogieIcfgContainer [2023-10-12 17:22:32,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:32,705 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:32,705 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:32,708 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:32,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:32,709 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:32" (1/2) ... [2023-10-12 17:22:32,710 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bbaed76 and model type unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:32, skipping insertion in model container [2023-10-12 17:22:32,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:32,711 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:32" (2/2) ... [2023-10-12 17:22:32,712 INFO L332 chiAutomizerObserver]: Analyzing ICFG unroll-cond-3.wvr.bpl [2023-10-12 17:22:32,770 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:22:32,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 52 flow [2023-10-12 17:22:32,815 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-10-12 17:22:32,816 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:22:32,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2023-10-12 17:22:32,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 18 transitions, 52 flow [2023-10-12 17:22:32,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 40 flow [2023-10-12 17:22:32,824 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:32,841 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 40 flow [2023-10-12 17:22:32,844 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 40 flow [2023-10-12 17:22:32,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 40 flow [2023-10-12 17:22:32,849 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-10-12 17:22:32,849 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:22:32,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2023-10-12 17:22:32,850 INFO L119 LiptonReduction]: Number of co-enabled transitions 22 [2023-10-12 17:22:32,922 INFO L134 LiptonReduction]: Checked pairs total: 22 [2023-10-12 17:22:32,922 INFO L136 LiptonReduction]: Total number of compositions: 4 [2023-10-12 17:22:32,933 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:32,933 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:32,934 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:32,934 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:32,934 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:32,934 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:32,934 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:32,934 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:32,935 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 places, 11 transitions, 34 flow [2023-10-12 17:22:32,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:32,938 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:32,938 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:32,938 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:32,941 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:32,941 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 places, 11 transitions, 34 flow [2023-10-12 17:22:32,942 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:32,943 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:32,943 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:32,943 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:32,947 INFO L748 eck$LassoCheckResult]: Stem: 25#[$Ultimate##0]true [57] $Ultimate##0-->L56: Formula: (and (= v_i1_5 0) (= v_i1_5 v_x1_3) (= v_i1_5 v_i2_15) (= v_i1_5 v_x2_11)) InVars {i1=v_i1_5, i2=v_i2_15, x1=v_x1_3, x2=v_x2_11} OutVars{i1=v_i1_5, i2=v_i2_15, x1=v_x1_3, x2=v_x2_11} AuxVars[] AssignedVars[] 27#[L56]true [67] L56-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 29#[L56-1, L20]true [2023-10-12 17:22:32,947 INFO L750 eck$LassoCheckResult]: Loop: 29#[L56-1, L20]true [61] L20-->L20: Formula: (and (= (+ v_i1_11 1) v_i1_10) (= (select v_f_23 v_x1_10) v_x1_9) (< v_i1_11 v_n_21)) InVars {i1=v_i1_11, x1=v_x1_10, n=v_n_21, f=v_f_23} OutVars{i1=v_i1_10, x1=v_x1_9, n=v_n_21, f=v_f_23} AuxVars[] AssignedVars[i1, x1] 29#[L56-1, L20]true [2023-10-12 17:22:32,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2795, now seen corresponding path program 1 times [2023-10-12 17:22:32,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:32,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993768232] [2023-10-12 17:22:32,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:32,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:33,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash 92, now seen corresponding path program 1 times [2023-10-12 17:22:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:33,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379346722] [2023-10-12 17:22:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:33,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash 86706, now seen corresponding path program 1 times [2023-10-12 17:22:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:33,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502092322] [2023-10-12 17:22:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:33,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:33,235 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:33,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:33,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:33,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:33,236 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:33,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:33,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:33,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:33,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: unroll-cond-3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:33,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:33,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:33,274 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 17:22:33,286 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 17:22:33,290 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 17:22:33,297 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 17:22:33,320 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 17:22:33,397 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:33,400 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:33,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:33,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:33,407 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 17:22:33,408 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 17:22:33,409 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 17:22:33,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:33,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:33,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:33,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:33,422 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:33,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:33,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:33,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:22:33,448 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:22:33,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:33,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:33,459 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 17:22:33,581 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:33,590 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 17:22:33,595 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:22:33,596 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:33,596 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, i1) = 1*n - 1*i1 Supporting invariants [] [2023-10-12 17:22:33,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:22:33,603 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:22:33,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:33,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:33,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:33,643 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:33,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:33,644 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 17:22:33,669 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 17:22:33,670 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:22:33,723 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 5 states and 124 transitions. [2023-10-12 17:22:33,724 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:33,726 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:33,728 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 17:22:33,732 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 17:22:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2023-10-12 17:22:33,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 88 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:33,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:33,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 88 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:33,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:33,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 88 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:33,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:33,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:33,749 INFO L124 PetriNetUnfolderBase]: 31/63 cut-off events. [2023-10-12 17:22:33,749 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-10-12 17:22:33,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 63 events. 31/63 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 149 event pairs, 2 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 96. Up to 21 conditions per place. [2023-10-12 17:22:33,750 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:33,753 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:33,753 INFO L430 stractBuchiCegarLoop]: Abstraction has has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:33,754 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:33,754 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:33,758 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:33,758 INFO L124 PetriNetUnfolderBase]: 8/17 cut-off events. [2023-10-12 17:22:33,758 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:33,758 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:33,759 INFO L748 eck$LassoCheckResult]: Stem: 25#[$Ultimate##0]true [57] $Ultimate##0-->L56: Formula: (and (= v_i1_5 0) (= v_i1_5 v_x1_3) (= v_i1_5 v_i2_15) (= v_i1_5 v_x2_11)) InVars {i1=v_i1_5, i2=v_i2_15, x1=v_x1_3, x2=v_x2_11} OutVars{i1=v_i1_5, i2=v_i2_15, x1=v_x1_3, x2=v_x2_11} AuxVars[] AssignedVars[] 27#[L56]true [67] L56-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 29#[L56-1, L20]true [70] L56-1-->L33: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 74#[L33, L20, L57]true [2023-10-12 17:22:33,759 INFO L750 eck$LassoCheckResult]: Loop: 74#[L33, L20, L57]true [63] L33-->L33: Formula: (and (< (+ 2 v_i2_58) v_n_25) (= (+ 3 v_i2_58) v_i2_56) (= (select v_f_29 (select v_f_29 (select v_f_29 v_x2_55))) v_x2_53)) InVars {i2=v_i2_58, n=v_n_25, f=v_f_29, x2=v_x2_55} OutVars{i2=v_i2_56, n=v_n_25, f=v_f_29, x2=v_x2_53} AuxVars[] AssignedVars[x2, i2] 74#[L33, L20, L57]true [63] L33-->L33: Formula: (and (< (+ 2 v_i2_58) v_n_25) (= (+ 3 v_i2_58) v_i2_56) (= (select v_f_29 (select v_f_29 (select v_f_29 v_x2_55))) v_x2_53)) InVars {i2=v_i2_58, n=v_n_25, f=v_f_29, x2=v_x2_55} OutVars{i2=v_i2_56, n=v_n_25, f=v_f_29, x2=v_x2_53} AuxVars[] AssignedVars[x2, i2] 74#[L33, L20, L57]true [2023-10-12 17:22:33,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:33,759 INFO L85 PathProgramCache]: Analyzing trace with hash 86715, now seen corresponding path program 1 times [2023-10-12 17:22:33,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:33,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865381763] [2023-10-12 17:22:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:33,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:33,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2977, now seen corresponding path program 1 times [2023-10-12 17:22:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:33,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303838275] [2023-10-12 17:22:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:33,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:33,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:33,791 INFO L85 PathProgramCache]: Analyzing trace with hash 83335131, now seen corresponding path program 1 times [2023-10-12 17:22:33,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:33,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367462407] [2023-10-12 17:22:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:33,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:33,906 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:33,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:33,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:33,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:33,907 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:33,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:33,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:33,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:33,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: unroll-cond-3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:33,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:33,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:33,908 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 17:22:33,911 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 17:22:33,913 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 17:22:33,916 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 17:22:33,921 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 17:22:34,000 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 17:22:34,004 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 17:22:34,085 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:34,085 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:34,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:34,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:34,089 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 17:22:34,092 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 17:22:34,094 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 17:22:34,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:34,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:34,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:34,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:34,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:34,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:34,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:34,124 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 17:22:34,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:34,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:34,129 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 17:22:34,132 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 17:22:34,134 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 17:22:34,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:34,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:34,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:34,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:34,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:34,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:34,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:34,173 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 17:22:34,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:34,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:34,174 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 17:22:34,176 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 17:22:34,178 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 17:22:34,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:34,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:34,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:34,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:34,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:34,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:34,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:34,212 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 17:22:34,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:34,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:34,368 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 17:22:34,370 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 17:22:34,373 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 17:22:34,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:34,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:34,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:34,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:34,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:34,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:34,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:34,423 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:22:34,424 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:22:34,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:34,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:34,465 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 17:22:34,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:34,476 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 17:22:34,478 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:22:34,478 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:34,479 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, n) = -1*i2 + 1*n Supporting invariants [] [2023-10-12 17:22:34,485 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 17:22:34,487 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:22:34,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:34,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:34,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:34,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:34,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:22:34,540 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 17:22:34,540 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:22:34,599 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 5 states and 124 transitions. [2023-10-12 17:22:34,600 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:34,614 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:34,614 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 17:22:34,615 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 17:22:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2023-10-12 17:22:34,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 88 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:34,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:34,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 88 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:34,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:34,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 88 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:34,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:34,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:34,672 INFO L124 PetriNetUnfolderBase]: 67/136 cut-off events. [2023-10-12 17:22:34,675 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-10-12 17:22:34,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 136 events. 67/136 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 488 event pairs, 1 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 240. Up to 48 conditions per place. [2023-10-12 17:22:34,676 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:34,736 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:34,736 INFO L430 stractBuchiCegarLoop]: Abstraction has has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:34,736 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:34,736 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:34,750 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 17:22:34,765 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 17:22:34,790 INFO L124 PetriNetUnfolderBase]: 67/136 cut-off events. [2023-10-12 17:22:34,790 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-10-12 17:22:34,790 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:22:34,800 INFO L201 PluginConnector]: Adding new model unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:22:34 BoogieIcfgContainer [2023-10-12 17:22:34,800 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:22:34,801 INFO L158 Benchmark]: Toolchain (without parser) took 2420.44ms. Allocated memory was 197.1MB in the beginning and 287.3MB in the end (delta: 90.2MB). Free memory was 150.5MB in the beginning and 246.3MB in the end (delta: -95.7MB). Peak memory consumption was 68.7MB. Max. memory is 8.0GB. [2023-10-12 17:22:34,802 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.29ms. Allocated memory is still 197.1MB. Free memory was 152.0MB in the beginning and 151.9MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:22:34,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.04ms. Allocated memory is still 197.1MB. Free memory was 150.5MB in the beginning and 149.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:22:34,804 INFO L158 Benchmark]: Boogie Preprocessor took 25.84ms. Allocated memory is still 197.1MB. Free memory was 149.2MB in the beginning and 148.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:22:34,804 INFO L158 Benchmark]: RCFGBuilder took 269.91ms. Allocated memory is still 197.1MB. Free memory was 148.1MB in the beginning and 135.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-10-12 17:22:34,806 INFO L158 Benchmark]: BuchiAutomizer took 2095.29ms. Allocated memory was 197.1MB in the beginning and 287.3MB in the end (delta: 90.2MB). Free memory was 135.2MB in the beginning and 246.3MB in the end (delta: -111.0MB). Peak memory consumption was 54.0MB. Max. memory is 8.0GB. [2023-10-12 17:22:34,811 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 0.29ms. Allocated memory is still 197.1MB. Free memory was 152.0MB in the beginning and 151.9MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.04ms. Allocated memory is still 197.1MB. Free memory was 150.5MB in the beginning and 149.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.84ms. Allocated memory is still 197.1MB. Free memory was 149.2MB in the beginning and 148.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 269.91ms. Allocated memory is still 197.1MB. Free memory was 148.1MB in the beginning and 135.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2095.29ms. Allocated memory was 197.1MB in the beginning and 287.3MB in the end (delta: 90.2MB). Free memory was 135.2MB in the beginning and 246.3MB in the end (delta: -111.0MB). Peak memory consumption was 54.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + n and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 34 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital39 mio100 ax100 hnf100 lsp38 ukn88 mio100 lsp100 div100 bol100 ite100 ukn100 eq177 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 194ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - 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, 19 PlacesBefore, 16 PlacesAfterwards, 14 TransitionsBefore, 11 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, independent: 22, independent conditional: 0, independent unconditional: 22, 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: 22, independent: 12, independent conditional: 0, independent unconditional: 12, 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): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, 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 17:22:34,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...