/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/test/easy11.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:32:36,548 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:32:36,590 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 17:32:36,608 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:32:36,609 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:32:36,609 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:32:36,610 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:32:36,610 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:32:36,610 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:32:36,610 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:32:36,611 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:32:36,611 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:32:36,611 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:32:36,611 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:32:36,612 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:32:36,612 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:32:36,612 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:32:36,612 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:32:36,613 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:32:36,613 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:32:36,613 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:32:36,616 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:32:36,617 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:32:36,617 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:32:36,620 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:32:36,620 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:32:36,620 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:32:36,621 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:32:36,621 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:32:36,621 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:32:36,621 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:32:36,622 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:32:36,622 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:32:36,623 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:32:36,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:32:36,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:32:36,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:32:36,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:32:36,825 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:32:36,826 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:32:36,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl [2023-10-12 17:32:36,827 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl' [2023-10-12 17:32:36,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:32:36,844 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:32:36,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:32:36,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:32:36,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:32:36,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,866 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:32:36,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:32:36,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:32:36,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:32:36,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:32:36,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:32:36,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:32:36,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:32:36,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:32:36,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/1) ... [2023-10-12 17:32:36,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:36,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:36,909 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 17:32:36,938 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 17:32:36,948 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:32:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:32:36,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:32:36,948 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:32:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:32:36,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:32:36,949 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:32:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:32:36,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:32:36,950 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 17:32:36,986 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:32:36,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:32:37,076 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:32:37,082 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:32:37,082 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:32:37,083 INFO L201 PluginConnector]: Adding new model easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:32:37 BoogieIcfgContainer [2023-10-12 17:32:37,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:32:37,084 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:32:37,084 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:32:37,089 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:32:37,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:32:37,090 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:32:36" (1/2) ... [2023-10-12 17:32:37,093 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12cc91ea and model type easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:32:37, skipping insertion in model container [2023-10-12 17:32:37,093 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:32:37,093 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:32:37" (2/2) ... [2023-10-12 17:32:37,094 INFO L332 chiAutomizerObserver]: Analyzing ICFG easy11.wvr.bpl [2023-10-12 17:32:37,139 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:32:37,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 25 transitions, 66 flow [2023-10-12 17:32:37,180 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-10-12 17:32:37,180 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:32:37,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2023-10-12 17:32:37,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 25 transitions, 66 flow [2023-10-12 17:32:37,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2023-10-12 17:32:37,189 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:32:37,198 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 21 transitions, 54 flow [2023-10-12 17:32:37,200 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 21 transitions, 54 flow [2023-10-12 17:32:37,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 21 transitions, 54 flow [2023-10-12 17:32:37,205 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-10-12 17:32:37,206 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:32:37,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2023-10-12 17:32:37,207 INFO L119 LiptonReduction]: Number of co-enabled transitions 96 [2023-10-12 17:32:37,360 INFO L134 LiptonReduction]: Checked pairs total: 53 [2023-10-12 17:32:37,360 INFO L136 LiptonReduction]: Total number of compositions: 9 [2023-10-12 17:32:37,369 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:32:37,370 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:32:37,370 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:32:37,370 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:32:37,370 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:32:37,370 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:32:37,370 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:32:37,370 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:32:37,371 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 places, 13 transitions, 38 flow [2023-10-12 17:32:37,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:37,374 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-10-12 17:32:37,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:32:37,374 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:37,376 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:32:37,377 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 places, 13 transitions, 38 flow [2023-10-12 17:32:37,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:37,378 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-10-12 17:32:37,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:32:37,378 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:37,382 INFO L748 eck$LassoCheckResult]: Stem: 32#[$Ultimate##0]true [41] $Ultimate##0-->L38: Formula: (and (= v_Y_5 0) (<= v_X_3 10000)) InVars {Y=v_Y_5, X=v_X_3} OutVars{Y=v_Y_5, X=v_X_3} AuxVars[] AssignedVars[] 34#[L38]true [64] L38-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_x=v_thread1Thread1of1ForFork0_x_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_x] 36#[L38-1, $Ultimate##0]true [50] $Ultimate##0-->L17-1: Formula: (= v_X_1 v_thread1Thread1of1ForFork0_x_1) InVars {X=v_X_1, thread1Thread1of1ForFork0_x=v_thread1Thread1of1ForFork0_x_1} OutVars{X=v_X_1, thread1Thread1of1ForFork0_x=v_thread1Thread1of1ForFork0_x_1} AuxVars[] AssignedVars[] 38#[L38-1, L17-1]true [2023-10-12 17:32:37,382 INFO L750 eck$LassoCheckResult]: Loop: 38#[L38-1, L17-1]true [75] L17-1-->L17-1: Formula: (and (< v_thread1Thread1of1ForFork0_x_22 10000) (= v_thread1Thread1of1ForFork0_x_21 (+ v_thread1Thread1of1ForFork0_x_22 1))) InVars {thread1Thread1of1ForFork0_x=v_thread1Thread1of1ForFork0_x_22} OutVars{thread1Thread1of1ForFork0_x=v_thread1Thread1of1ForFork0_x_21} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_x] 38#[L38-1, L17-1]true [2023-10-12 17:32:37,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:37,386 INFO L85 PathProgramCache]: Analyzing trace with hash 71226, now seen corresponding path program 1 times [2023-10-12 17:32:37,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:37,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773003310] [2023-10-12 17:32:37,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:37,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:37,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:37,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:37,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash 106, now seen corresponding path program 1 times [2023-10-12 17:32:37,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:37,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824837022] [2023-10-12 17:32:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:37,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:37,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:37,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:37,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:37,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2208081, now seen corresponding path program 1 times [2023-10-12 17:32:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:37,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754898262] [2023-10-12 17:32:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:37,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:37,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:37,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:37,549 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:37,550 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:37,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:37,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:37,550 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:32:37,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:37,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:37,551 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:37,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy11.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:32:37,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:37,551 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:37,561 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 17:32:37,599 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:37,600 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:32:37,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:37,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:37,602 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 17:32:37,603 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 17:32:37,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:37,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:37,627 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 17:32:37,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:37,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:37,629 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 17:32:37,638 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 17:32:37,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:32:37,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:37,654 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:32:37,657 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 17:32:37,658 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:37,658 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:37,658 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:37,658 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:37,658 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:32:37,658 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:37,658 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:37,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:37,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy11.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:32:37,658 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:37,658 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:37,659 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 17:32:37,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:37,682 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:32:37,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:37,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:37,684 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 17:32:37,686 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 17:32:37,688 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 17:32:37,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:37,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:37,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:37,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:37,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:37,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:37,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:37,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:32:37,720 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:32:37,721 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:32:37,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:37,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:37,723 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 17:32:37,723 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 17:32:37,770 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:32:37,770 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:32:37,771 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:32:37,771 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_x) = -2*thread1Thread1of1ForFork0_x + 19999 Supporting invariants [] [2023-10-12 17:32:37,775 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 17:32:37,778 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:32:37,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:37,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:32:37,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:37,828 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:32:37,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:37,829 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 17:32:37,852 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 17:32:37,853 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:37,954 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 228 transitions. [2023-10-12 17:32:37,955 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:32:37,958 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:32:37,960 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 17:32:37,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2023-10-12 17:32:37,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:32:37,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:37,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:32:37,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:37,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:32:37,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:37,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 170 transitions, 836 flow [2023-10-12 17:32:37,986 INFO L124 PetriNetUnfolderBase]: 55/104 cut-off events. [2023-10-12 17:32:37,987 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-10-12 17:32:37,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 104 events. 55/104 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 279 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 164. Up to 32 conditions per place. [2023-10-12 17:32:37,987 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 30 places, 170 transitions, 836 flow [2023-10-12 17:32:37,991 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 30 places, 170 transitions, 836 flow [2023-10-12 17:32:37,991 INFO L430 stractBuchiCegarLoop]: Abstraction has has 30 places, 170 transitions, 836 flow [2023-10-12 17:32:37,991 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:32:37,991 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 places, 170 transitions, 836 flow [2023-10-12 17:32:38,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:32:38,001 INFO L124 PetriNetUnfolderBase]: 21/38 cut-off events. [2023-10-12 17:32:38,001 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-10-12 17:32:38,001 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:32:38,001 INFO L748 eck$LassoCheckResult]: Stem: 32#[$Ultimate##0]true [41] $Ultimate##0-->L38: Formula: (and (= v_Y_5 0) (<= v_X_3 10000)) InVars {Y=v_Y_5, X=v_X_3} OutVars{Y=v_Y_5, X=v_X_3} AuxVars[] AssignedVars[] 34#[L38]true [64] L38-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_x=v_thread1Thread1of1ForFork0_x_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_x] 36#[L38-1, $Ultimate##0]true [67] L38-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_14, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_x, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 89#[$Ultimate##0, $Ultimate##0, L39]true [56] $Ultimate##0-->L28-1: Formula: (= v_X_2 v_thread2Thread1of1ForFork1_x_1) InVars {thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_1, X=v_X_2} OutVars{thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_1, X=v_X_2} AuxVars[] AssignedVars[] 91#[$Ultimate##0, L28-1, L39]true [2023-10-12 17:32:38,002 INFO L750 eck$LassoCheckResult]: Loop: 91#[$Ultimate##0, L28-1, L39]true [72] L28-1-->L28-1: Formula: (and (= v_thread2Thread1of1ForFork1_x_19 (+ v_thread2Thread1of1ForFork1_x_20 1)) (< v_thread2Thread1of1ForFork1_x_20 10000)) InVars {thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_20} OutVars{thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_19} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_x] 91#[$Ultimate##0, L28-1, L39]true [72] L28-1-->L28-1: Formula: (and (= v_thread2Thread1of1ForFork1_x_19 (+ v_thread2Thread1of1ForFork1_x_20 1)) (< v_thread2Thread1of1ForFork1_x_20 10000)) InVars {thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_20} OutVars{thread2Thread1of1ForFork1_x=v_thread2Thread1of1ForFork1_x_19} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_x] 91#[$Ultimate##0, L28-1, L39]true [2023-10-12 17:32:38,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2208589, now seen corresponding path program 1 times [2023-10-12 17:32:38,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:38,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683357055] [2023-10-12 17:32:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:38,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:38,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:38,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:38,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:38,024 INFO L85 PathProgramCache]: Analyzing trace with hash 3265, now seen corresponding path program 1 times [2023-10-12 17:32:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:38,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813697634] [2023-10-12 17:32:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:38,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:38,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:38,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:38,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2122456333, now seen corresponding path program 1 times [2023-10-12 17:32:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:32:38,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413276704] [2023-10-12 17:32:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:32:38,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:32:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:38,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:32:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:32:38,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:32:38,086 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:38,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:38,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:38,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:38,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:32:38,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:38,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:38,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:38,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy11.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:32:38,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:38,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:38,088 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 17:32:38,115 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:38,115 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:32:38,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:38,117 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 17:32:38,119 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 17:32:38,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:32:38,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:38,155 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 17:32:38,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:38,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:38,158 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 17:32:38,161 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 17:32:38,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:32:38,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:32:50,206 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2023-10-12 17:32:50,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:32:50,213 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:32:50,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:32:50,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:32:50,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:32:50,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:32:50,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:50,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:32:50,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:32:50,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy11.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:32:50,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:32:50,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:32:50,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:32:50,236 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:32:50,237 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:32:50,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:50,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:50,245 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 17:32:50,246 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 17:32:50,248 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 17:32:50,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:32:50,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:32:50,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:32:50,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:32:50,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:32:50,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:32:50,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:32:50,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:32:50,258 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:32:50,258 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:32:50,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:32:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:32:50,296 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 17:32:50,297 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 17:32:50,299 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:32:50,299 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:32:50,300 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:32:50,300 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_x) = -1*thread2Thread1of1ForFork1_x + 9999 Supporting invariants [] [2023-10-12 17:32:50,306 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 17:32:50,307 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:32:50,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:32:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:50,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:32:50,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:32:50,351 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:32:50,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:32:50,363 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 17:32:50,363 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 17:32:50,363 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:50,477 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 290 transitions. [2023-10-12 17:32:50,477 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:32:50,495 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:32:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:32:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:32:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2023-10-12 17:32:50,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 167 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:32:50,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:50,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 167 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:32:50,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:50,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 167 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:32:50,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:32:50,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 2832 transitions, 19548 flow [2023-10-12 17:32:50,590 INFO L124 PetriNetUnfolderBase]: 141/255 cut-off events. [2023-10-12 17:32:50,590 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-10-12 17:32:50,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 255 events. 141/255 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 975 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 631. Up to 89 conditions per place. [2023-10-12 17:32:50,592 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 2832 transitions, 19548 flow [2023-10-12 17:32:50,625 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 2832 transitions, 19548 flow [2023-10-12 17:32:50,625 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 2832 transitions, 19548 flow [2023-10-12 17:32:50,625 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:32:50,625 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 2832 transitions, 19548 flow [2023-10-12 17:32:50,678 INFO L124 PetriNetUnfolderBase]: 141/255 cut-off events. [2023-10-12 17:32:50,679 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-10-12 17:32:50,679 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:32:50,687 INFO L201 PluginConnector]: Adding new model easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:32:50 BoogieIcfgContainer [2023-10-12 17:32:50,687 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:32:50,688 INFO L158 Benchmark]: Toolchain (without parser) took 13843.48ms. Allocated memory was 178.3MB in the beginning and 323.0MB in the end (delta: 144.7MB). Free memory was 129.7MB in the beginning and 191.0MB in the end (delta: -61.3MB). Peak memory consumption was 83.5MB. Max. memory is 8.0GB. [2023-10-12 17:32:50,689 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.21ms. Allocated memory is still 178.3MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:32:50,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.50ms. Allocated memory is still 178.3MB. Free memory was 129.6MB in the beginning and 128.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:32:50,689 INFO L158 Benchmark]: Boogie Preprocessor took 13.12ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 127.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:32:50,690 INFO L158 Benchmark]: RCFGBuilder took 201.21ms. Allocated memory was 178.3MB in the beginning and 323.0MB in the end (delta: 144.7MB). Free memory was 127.0MB in the beginning and 291.6MB in the end (delta: -164.6MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. [2023-10-12 17:32:50,691 INFO L158 Benchmark]: BuchiAutomizer took 13603.13ms. Allocated memory is still 323.0MB. Free memory was 291.6MB in the beginning and 191.0MB in the end (delta: 100.5MB). Peak memory consumption was 99.5MB. Max. memory is 8.0GB. [2023-10-12 17:32:50,695 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 0.21ms. Allocated memory is still 178.3MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.50ms. Allocated memory is still 178.3MB. Free memory was 129.6MB in the beginning and 128.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.12ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 127.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 201.21ms. Allocated memory was 178.3MB in the beginning and 323.0MB in the end (delta: 144.7MB). Free memory was 127.0MB in the beginning and 291.6MB in the end (delta: -164.6MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 13603.13ms. Allocated memory is still 323.0MB. Free memory was 291.6MB in the beginning and 191.0MB in the end (delta: 100.5MB). Peak memory consumption was 99.5MB. 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 19999 + x * -2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x + 9999 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.5s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 12.7s. 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, 145 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 145 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 85 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 87ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.1s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 26 PlacesBefore, 18 PlacesAfterwards, 21 TransitionsBefore, 13 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 53 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, independent: 53, independent conditional: 0, independent unconditional: 53, 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: 49, independent: 49, independent conditional: 0, independent unconditional: 49, 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: 49, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 53, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 49, unknown conditional: 0, unknown unconditional: 49] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:32:50,708 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 17:32:50,910 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 17:32:51,113 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...